Whamcloud - gitweb
LU-6911 ldiskfs: mds crash kernel at fs/inode.c:1358 68/15768/4
authorBobi Jam <bobijam.xu@intel.com>
Tue, 28 Jul 2015 03:36:34 +0000 (11:36 +0800)
committerOleg Drokin <oleg.drokin@intel.com>
Tue, 18 Aug 2015 11:33:30 +0000 (11:33 +0000)
A glitch exists in LU-4648 patch (commit
ed69a331b1e502643fe074c121f9a8b9d041fc49) which does not put ea
inodes to orphan list if no external ea is used.

Signed-off-by: Bobi Jam <bobijam.xu@intel.com>
Change-Id: I1c28b989d73d06317e4064b739d69fa9453c5deb
Reviewed-on: http://review.whamcloud.com/15768
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Yang Sheng <yang.sheng@intel.com>
Reviewed-by: Fan Yong <fan.yong@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
ldiskfs/kernel_patches/patches/rhel6.3/ext4-large-eas.patch
ldiskfs/kernel_patches/patches/rhel7/ext4-large-eas.patch
ldiskfs/kernel_patches/patches/sles11sp2/ext4-large-eas.patch
ldiskfs/kernel_patches/patches/sles12/ext4-large-eas.patch

index 9f41d82..5981307 100644 (file)
@@ -2,7 +2,7 @@ Index: linux-stage/fs/ext4/ext4.h
 ===================================================================
 --- linux-stage.orig/fs/ext4/ext4.h
 +++ linux-stage/fs/ext4/ext4.h
-@@ -1333,6 +1333,7 @@ EXT4_INODE_BIT_FNS(state, state_flags)
+@@ -1329,6 +1329,7 @@ EXT4_INODE_BIT_FNS(state, state_flags)
  #define EXT4_FEATURE_INCOMPAT_64BIT           0x0080
  #define EXT4_FEATURE_INCOMPAT_MMP               0x0100
  #define EXT4_FEATURE_INCOMPAT_FLEX_BG         0x0200
@@ -10,7 +10,7 @@ Index: linux-stage/fs/ext4/ext4.h
  #define EXT4_FEATURE_INCOMPAT_DIRDATA         0x1000
  
  #define EXT4_FEATURE_COMPAT_SUPP      EXT2_FEATURE_COMPAT_EXT_ATTR
-@@ -1342,6 +1343,7 @@ EXT4_INODE_BIT_FNS(state, state_flags)
+@@ -1338,6 +1339,7 @@ EXT4_INODE_BIT_FNS(state, state_flags)
                                         EXT4_FEATURE_INCOMPAT_EXTENTS| \
                                         EXT4_FEATURE_INCOMPAT_64BIT| \
                                         EXT4_FEATURE_INCOMPAT_FLEX_BG| \
@@ -18,8 +18,8 @@ Index: linux-stage/fs/ext4/ext4.h
                                         EXT4_FEATURE_INCOMPAT_MMP| \
                                         EXT4_FEATURE_INCOMPAT_DIRDATA)
  
-@@ -1706,6 +1708,12 @@ struct mmpd_data {
- #endif
+@@ -1695,6 +1697,12 @@ struct mmpd_data {
+ #define EXT4_MMP_MAX_CHECK_INTERVAL    300UL
  
  /*
 + * Maximum size of xattr attributes for FEATURE_INCOMPAT_EA_INODE 1Mb
@@ -31,7 +31,7 @@ Index: linux-stage/fs/ext4/ext4.h
   * Function prototypes
   */
  
-@@ -1717,6 +1725,10 @@ struct mmpd_data {
+@@ -1706,6 +1714,10 @@ struct mmpd_data {
  # define ATTRIB_NORET __attribute__((noreturn))
  # define NORET_AND    noreturn,
  
@@ -589,7 +589,7 @@ Index: linux-stage/fs/ext4/xattr.c
                        if (error)
                                goto cleanup;
                        if (!is.s.not_found) {
-@@ -1088,10 +1384,25 @@ ext4_xattr_set(struct inode *inode, int 
+@@ -1087,10 +1383,25 @@ ext4_xattr_set(struct inode *inode, int 
               const void *value, size_t value_len, int flags)
  {
        handle_t *handle;
@@ -616,7 +616,7 @@ Index: linux-stage/fs/ext4/xattr.c
        if (IS_ERR(handle)) {
                error = PTR_ERR(handle);
        } else {
-@@ -1101,7 +1412,7 @@ retry:
+@@ -1100,7 +1411,7 @@ retry:
                                              value, value_len, flags);
                error2 = ext4_journal_stop(handle);
                if (error == -ENOSPC &&
@@ -625,7 +625,7 @@ Index: linux-stage/fs/ext4/xattr.c
                        goto retry;
                if (error == 0)
                        error = error2;
-@@ -1123,7 +1434,7 @@ static void ext4_xattr_shift_entries(str
+@@ -1122,7 +1433,7 @@ static void ext4_xattr_shift_entries(str
  
        /* Adjust the value offsets of the entries */
        for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) {
@@ -634,11 +634,10 @@ Index: linux-stage/fs/ext4/xattr.c
                        new_offs = le16_to_cpu(last->e_value_offs) +
                                                        value_offs_shift;
                        BUG_ON(new_offs + le32_to_cpu(last->e_value_size)
-@@ -1356,20 +1667,92 @@ cleanup:
+@@ -1355,22 +1666,135 @@ cleanup:
        return error;
  }
  
--
 +#define EIA_INCR 16 /* must be 2^n */
 +#define EIA_MASK (EIA_INCR - 1)
 +/* Add the large xattr @ino into @lea_ino_array for later deletion.
@@ -682,6 +681,43 @@ Index: linux-stage/fs/ext4/xattr.c
 +      return 0;
 +}
  
++/**
++ * Add xattr inode to orphan list
++ */
++static int
++ext4_xattr_inode_orphan_add(handle_t *handle, struct inode *inode,
++                      int credits, struct ext4_xattr_ino_array *lea_ino_array)
++{
++      struct inode *ea_inode = NULL;
++      int idx = 0, error = 0;
++
++      if (lea_ino_array == NULL)
++              return 0;
++
++      for (; idx < lea_ino_array->xia_count; ++idx) {
++              if (!ext4_handle_has_enough_credits(handle, credits)) {
++                      error = ext4_journal_extend(handle, credits);
++                      if (error > 0)
++                              error = ext4_journal_restart(handle, credits);
++
++                      if (error != 0) {
++                              ext4_warning(inode->i_sb,
++                                      "couldn't extend journal "
++                                      "(err %d)", error);
++                              return error;
++                      }
++              }
++              ea_inode = ext4_xattr_inode_iget(inode,
++                              lea_ino_array->xia_inodes[idx], &error);
++              if (error)
++                      continue;
++              ext4_orphan_add(handle, ea_inode);
++              /* the inode's i_count will be released by caller */
++      }
++
++      return 0;
++}
  /*
   * ext4_xattr_delete_inode()
   *
@@ -706,7 +742,8 @@ Index: linux-stage/fs/ext4/xattr.c
 +      struct ext4_iloc iloc;
 +      struct ext4_xattr_entry *entry;
 +      int credits = 3, error = 0;
-+
+-      if (!EXT4_I(inode)->i_file_acl)
 +      if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR))
 +              goto delete_external_ea;
 +
@@ -727,12 +764,18 @@ Index: linux-stage/fs/ext4/xattr.c
 +              entry->e_value_inum = 0;
 +      }
 +      brelse(iloc.bh);
++
 +delete_external_ea:
-       if (!EXT4_I(inode)->i_file_acl)
++      if (!EXT4_I(inode)->i_file_acl) {
++              /* add xattr inode to orphan list */
++              ext4_xattr_inode_orphan_add(handle, inode, credits,
++                                              *lea_ino_array);
                goto cleanup;
++      }
        bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl);
-@@ -1384,11 +1764,88 @@ ext4_xattr_delete_inode(handle_t *handle
+       if (!bh) {
+               ext4_error(inode->i_sb, "inode %lu: block %llu read error",
+@@ -1383,11 +1807,71 @@ ext4_xattr_delete_inode(handle_t *handle
                           inode->i_ino, EXT4_I(inode)->i_file_acl);
                goto cleanup;
        }
@@ -748,30 +791,10 @@ Index: linux-stage/fs/ext4/xattr.c
 +      }
 +
 +      /* add xattr inode to orphan list */
-+      if (*lea_ino_array != NULL) {
-+              struct inode *ea_inode = NULL;
-+              int idx = 0;
-+
-+              for (; idx < (*lea_ino_array)->xia_count; ++idx) {
-+                      if (!ext4_handle_has_enough_credits(handle, credits)) {
-+                              error = ext4_journal_extend(handle, credits);
-+                              if (error > 0)
-+                                      error = ext4_journal_restart(handle, credits);
-+                              if (error != 0) {
-+                                      ext4_warning(inode->i_sb,
-+                                              "couldn't extend journal "
-+                                              "(err %d)", error);
-+                                      goto cleanup;
-+                              }
-+                      }
-+                      ea_inode = ext4_xattr_inode_iget(inode,
-+                              (*lea_ino_array)->xia_inodes[idx], &error);
-+                      if (error)
-+                              continue;
-+                      ext4_orphan_add(handle, ea_inode);
-+                      /* the inode's i_count will be released by caller */
-+              }
-+      }
++      error = ext4_xattr_inode_orphan_add(handle, inode, credits,
++                                      *lea_ino_array);
++      if (error != 0)
++              goto cleanup;
 +
 +      if (!IS_NOQUOTA(inode))
 +              credits += 2 * EXT4_QUOTA_DEL_BLOCKS(inode->i_sb);
@@ -812,16 +835,19 @@ Index: linux-stage/fs/ext4/xattr.c
 +                              lea_ino_array->xia_inodes[idx], &err);
 +              if (err)
 +                      continue;
-+              ea_inode->i_nlink = 0;
-+              iput(ea_inode);
++
 +              /* for inode's i_count get from ext4_xattr_delete_inode */
++              if (!list_empty(&EXT4_I(ea_inode)->i_orphan))
++                      iput(ea_inode);
++
++              ea_inode->i_nlink = 0;
 +              iput(ea_inode);
 +      }
 +      kfree(lea_ino_array);
  }
  
  /*
-@@ -1458,10 +1915,9 @@ ext4_xattr_cmp(struct ext4_xattr_header
+@@ -1457,10 +1941,9 @@ ext4_xattr_cmp(struct ext4_xattr_header 
                    entry1->e_name_index != entry2->e_name_index ||
                    entry1->e_name_len != entry2->e_name_len ||
                    entry1->e_value_size != entry2->e_value_size ||
@@ -833,7 +859,7 @@ Index: linux-stage/fs/ext4/xattr.c
                if (memcmp((char *)header1 + le16_to_cpu(entry1->e_value_offs),
                           (char *)header2 + le16_to_cpu(entry2->e_value_offs),
                           le32_to_cpu(entry1->e_value_size)))
-@@ -1546,7 +2002,7 @@ static inline void ext4_xattr_hash_entry
+@@ -1545,7 +2028,7 @@ static inline void ext4_xattr_hash_entry
                       *name++;
        }
  
@@ -913,7 +939,7 @@ Index: linux-stage/fs/ext4/inode.c
  
        if (ext4_should_order_data(inode))
                ext4_begin_ordered_truncate(inode, 0);
-@@ -238,7 +239,8 @@ void ext4_delete_inode(struct inode *ino
+@@ -235,7 +237,8 @@ void ext4_delete_inode(struct inode *ino
         * protection against it
         */
        sb_start_intwrite(inode->i_sb);
@@ -923,7 +949,7 @@ Index: linux-stage/fs/ext4/inode.c
        if (IS_ERR(handle)) {
                ext4_std_error(inode->i_sb, PTR_ERR(handle));
                /*
-@@ -251,9 +252,36 @@ void ext4_delete_inode(struct inode *ino
+@@ -247,9 +250,36 @@ void ext4_delete_inode(struct inode *ino
                sb_end_intwrite(inode->i_sb);
                goto no_delete;
        }
@@ -961,7 +987,7 @@ Index: linux-stage/fs/ext4/inode.c
        inode->i_size = 0;
        err = ext4_mark_inode_dirty(handle, inode);
        if (err) {
-@@ -307,8 +335,12 @@ void ext4_delete_inode(struct inode *ino
+@@ -303,8 +333,12 @@ void ext4_delete_inode(struct inode *ino
                clear_inode(inode);
        else
                ext4_free_inode(handle, inode);
index 0a18c55..902e512 100644 (file)
@@ -4,11 +4,11 @@ not be saved in the external EA block, instead it would be saved
 in an external EA inode. So, the patch also helps support a larger
 number of EAs.
 
-Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/ext4.h
+Index: linux-stage/fs/ext4/ext4.h
 ===================================================================
---- linux-3.10.0-123.13.2.el7.x86_64.orig/fs/ext4/ext4.h
-+++ linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/ext4.h
-@@ -1534,6 +1534,7 @@ static inline void ext4_clear_state_flag
+--- linux-stage.orig/fs/ext4/ext4.h
++++ linux-stage/fs/ext4/ext4.h
+@@ -1579,6 +1579,7 @@ static inline void ext4_clear_state_flag
                                         EXT4_FEATURE_INCOMPAT_EXTENTS| \
                                         EXT4_FEATURE_INCOMPAT_64BIT| \
                                         EXT4_FEATURE_INCOMPAT_FLEX_BG| \
@@ -16,7 +16,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/ext4.h
                                         EXT4_FEATURE_INCOMPAT_MMP |    \
                                         EXT4_FEATURE_INCOMPAT_DIRDATA| \
                                         EXT4_FEATURE_INCOMPAT_INLINE_DATA)
-@@ -1934,6 +1935,12 @@ struct mmpd_data {
+@@ -1979,6 +1980,12 @@ struct mmpd_data {
  #define EXT4_MMP_MAX_CHECK_INTERVAL   300UL
  
  /*
@@ -29,7 +29,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/ext4.h
   * Function prototypes
   */
  
-@@ -1945,6 +1952,10 @@ struct mmpd_data {
+@@ -1990,6 +1997,10 @@ struct mmpd_data {
  # define ATTRIB_NORET __attribute__((noreturn))
  # define NORET_AND    noreturn,
  
@@ -40,19 +40,19 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/ext4.h
  /* bitmap.c */
  extern unsigned int ext4_count_free(char *bitmap, unsigned numchars);
  void ext4_inode_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
-@@ -2157,6 +2168,7 @@ extern void ext4_set_inode_flags(struct
+@@ -2194,6 +2205,7 @@ extern void ext4_set_inode_flags(struct
  extern void ext4_get_inode_flags(struct ext4_inode_info *);
  extern int ext4_alloc_da_blocks(struct inode *inode);
  extern void ext4_set_aops(struct inode *inode);
 +extern int ext4_meta_trans_blocks(struct inode *, int nrblocks, int chunk);
  extern int ext4_writepage_trans_blocks(struct inode *);
  extern int ext4_chunk_trans_blocks(struct inode *, int nrblocks);
- extern int ext4_discard_partial_page_buffers(handle_t *handle,
-Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/inode.c
+ extern int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,
+Index: linux-stage/fs/ext4/inode.c
 ===================================================================
---- linux-3.10.0-123.13.2.el7.x86_64.orig/fs/ext4/inode.c
-+++ linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/inode.c
-@@ -133,8 +183,6 @@ void ext4_evict_inode(struct inode *inod
+--- linux-stage.orig/fs/ext4/inode.c
++++ linux-stage/fs/ext4/inode.c
+@@ -134,8 +134,6 @@ static void ext4_invalidatepage(struct p
                                unsigned int length);
  static int __ext4_journalled_writepage(struct page *page, unsigned int len);
  static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh);
@@ -61,7 +61,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/inode.c
  
  /*
   * Test whether an inode is a fast symlink.
-@@ -183,6 +183,8 @@ void ext4_evict_inode(struct inode *inod
+@@ -184,6 +182,8 @@ void ext4_evict_inode(struct inode *inod
  {
        handle_t *handle;
        int err;
@@ -70,7 +70,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/inode.c
  
        trace_ext4_evict_inode(inode);
  
-@@ -235,8 +237,8 @@ void ext4_evict_inode(struct inode *inod
+@@ -236,8 +236,8 @@ void ext4_evict_inode(struct inode *inod
         * protection against it
         */
        sb_start_intwrite(inode->i_sb);
@@ -81,7 +81,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/inode.c
        if (IS_ERR(handle)) {
                ext4_std_error(inode->i_sb, PTR_ERR(handle));
                /*
-@@ -248,9 +250,36 @@ void ext4_evict_inode(struct inode *inod
+@@ -249,9 +249,36 @@ void ext4_evict_inode(struct inode *inod
                sb_end_intwrite(inode->i_sb);
                goto no_delete;
        }
@@ -119,7 +119,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/inode.c
        inode->i_size = 0;
        err = ext4_mark_inode_dirty(handle, inode);
        if (err) {
-@@ -305,8 +334,12 @@ void ext4_evict_inode(struct inode *inod
+@@ -306,8 +333,12 @@ void ext4_evict_inode(struct inode *inod
                ext4_clear_inode(inode);
        else
                ext4_free_inode(handle, inode);
@@ -132,7 +132,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/inode.c
        return;
  no_delete:
        ext4_clear_inode(inode);        /* We must guarantee clearing of inode... */
-@@ -4841,7 +4874,7 @@ static int ext4_index_trans_blocks(struc
+@@ -4681,7 +4712,7 @@ static int ext4_index_trans_blocks(struc
   *
   * Also account for superblock, inode, quota and xattr blocks
   */
@@ -141,12 +141,11 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/inode.c
                                  int pextents)
  {
        ext4_group_t groups, ngroups = ext4_get_groups_count(inode->i_sb);
-       int gdpblocks;
-Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
+Index: linux-stage/fs/ext4/xattr.c
 ===================================================================
---- linux-3.10.0-123.13.2.el7.x86_64.orig/fs/ext4/xattr.c
-+++ linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
-@@ -220,19 +220,26 @@ ext4_xattr_check_block(struct inode *ino
+--- linux-stage.orig/fs/ext4/xattr.c
++++ linux-stage/fs/ext4/xattr.c
+@@ -233,19 +233,26 @@ ext4_xattr_check_block(struct inode *ino
  }
  
  static inline int
@@ -177,7 +176,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
  {
        struct ext4_xattr_entry *entry;
        size_t name_len;
-@@ -252,11 +259,103 @@ ext4_xattr_find_entry(struct ext4_xattr_
+@@ -265,11 +272,103 @@ ext4_xattr_find_entry(struct ext4_xattr_
                        break;
        }
        *pentry = entry;
@@ -282,7 +281,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
  static int
  ext4_xattr_block_get(struct inode *inode, int name_index, const char *name,
                     void *buffer, size_t buffer_size)
-@@ -288,7 +387,8 @@ bad_block:
+@@ -301,7 +400,8 @@ bad_block:
        }
        ext4_xattr_cache_insert(bh);
        entry = BFIRST(bh);
@@ -292,7 +291,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
        if (error == -EIO)
                goto bad_block;
        if (error)
-@@ -298,8 +398,16 @@ bad_block:
+@@ -311,8 +411,16 @@ bad_block:
                error = -ERANGE;
                if (size > buffer_size)
                        goto cleanup;
@@ -311,7 +310,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
        }
        error = size;
  
-@@ -333,7 +441,7 @@ ext4_xattr_ibody_get(struct inode *inode
+@@ -346,7 +454,7 @@ ext4_xattr_ibody_get(struct inode *inode
        if (error)
                goto cleanup;
        error = ext4_xattr_find_entry(&entry, name_index, name,
@@ -320,7 +319,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
        if (error)
                goto cleanup;
        size = le32_to_cpu(entry->e_value_size);
-@@ -341,8 +449,16 @@ ext4_xattr_ibody_get(struct inode *inode
+@@ -354,8 +462,16 @@ ext4_xattr_ibody_get(struct inode *inode
                error = -ERANGE;
                if (size > buffer_size)
                        goto cleanup;
@@ -339,8 +338,8 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
        }
        error = size;
  
-@@ -568,7 +684,7 @@ static size_t ext4_xattr_free_space(stru
-               *total += EXT4_XATTR_LEN(last->e_name_len);
+@@ -600,7 +716,7 @@ static size_t ext4_xattr_free_space(stru
+                                   size_t *min_offs, void *base, int *total)
  {
        for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) {
 -              if (!last->e_value_block && last->e_value_size) {
@@ -348,14 +347,15 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                        size_t offs = le16_to_cpu(last->e_value_offs);
                        if (offs < *min_offs)
                                *min_offs = offs;
-@@ -577,16 +693,172 @@ static size_t ext4_xattr_free_space(stru
+@@ -611,16 +727,172 @@ static size_t ext4_xattr_free_space(stru
        return (*min_offs - ((void *)last - base) - sizeof(__u32));
  }
  
 +/*
 + * Write the value of the EA in an inode.
 + */
-+static int
+ static int
+-ext4_xattr_set_entry(struct ext4_xattr_info *i, struct ext4_xattr_search *s)
 +ext4_xattr_inode_write(handle_t *handle, struct inode *ea_inode,
 +                     const void *buf, int bufsize)
 +{
@@ -477,8 +477,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
 +/*
 + * Add value of the EA in an inode.
 + */
- static int
--ext4_xattr_set_entry(struct ext4_xattr_info *i, struct ext4_xattr_search *s)
++static int
 +ext4_xattr_inode_set(handle_t *handle, struct inode *inode, int *ea_ino,
 +                   const void *value, size_t value_len)
 +{
@@ -523,7 +522,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                        size_t offs = le16_to_cpu(last->e_value_offs);
                        if (offs < min_offs)
                                min_offs = offs;
-@@ -594,16 +865,21 @@ ext4_xattr_set_entry(struct ext4_xattr_i
+@@ -628,16 +900,21 @@ ext4_xattr_set_entry(struct ext4_xattr_i
        }
        free = min_offs - ((void *)last - s->base) - sizeof(__u32);
        if (!s->not_found) {
@@ -549,7 +548,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                        return -ENOSPC;
        }
  
-@@ -617,7 +893,8 @@ ext4_xattr_set_entry(struct ext4_xattr_i
+@@ -651,7 +928,8 @@ ext4_xattr_set_entry(struct ext4_xattr_i
                s->here->e_name_len = name_len;
                memcpy(s->here->e_name, i->name, name_len);
        } else {
@@ -559,7 +558,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                        void *first_val = s->base + min_offs;
                        size_t offs = le16_to_cpu(s->here->e_value_offs);
                        void *val = s->base + offs;
-@@ -651,13 +928,17 @@ ext4_xattr_set_entry(struct ext4_xattr_i
+@@ -685,13 +963,17 @@ ext4_xattr_set_entry(struct ext4_xattr_i
                        last = s->first;
                        while (!IS_LAST_ENTRY(last)) {
                                size_t o = le16_to_cpu(last->e_value_offs);
@@ -579,7 +578,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                if (!i->value) {
                        /* Remove the old name. */
                        size_t size = EXT4_XATTR_LEN(name_len);
-@@ -671,10 +952,17 @@ ext4_xattr_set_entry(struct ext4_xattr_i
+@@ -705,10 +987,17 @@ ext4_xattr_set_entry(struct ext4_xattr_i
        if (i->value) {
                /* Insert the new value. */
                s->here->e_value_size = cpu_to_le32(i->value_len);
@@ -598,7 +597,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                        if (i->value == EXT4_ZERO_XATTR_VALUE) {
                                memset(val, 0, size);
                        } else {
-@@ -724,7 +1012,7 @@ ext4_xattr_block_find(struct inode *inod
+@@ -758,7 +1047,7 @@ ext4_xattr_block_find(struct inode *inod
                bs->s.end = bs->bh->b_data + bs->bh->b_size;
                bs->s.here = bs->s.first;
                error = ext4_xattr_find_entry(&bs->s.here, i->name_index,
@@ -607,7 +606,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                if (error && error != -ENODATA)
                        goto cleanup;
                bs->s.not_found = error;
-@@ -748,8 +1036,6 @@ ext4_xattr_block_set(handle_t *handle, s
+@@ -782,8 +1071,6 @@ ext4_xattr_block_set(handle_t *handle, s
  
  #define header(x) ((struct ext4_xattr_header *)(x))
  
@@ -616,7 +615,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
        if (s->base) {
                ce = mb_cache_entry_get(ext4_xattr_cache, bs->bh->b_bdev,
                                        bs->bh->b_blocknr);
-@@ -764,7 +1050,7 @@ ext4_xattr_block_set(handle_t *handle, s
+@@ -799,7 +1086,7 @@ ext4_xattr_block_set(handle_t *handle, s
                                ce = NULL;
                        }
                        ea_bdebug(bs->bh, "modifying in-place");
@@ -625,7 +624,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                        if (!error) {
                                if (!IS_LAST_ENTRY(s->first))
                                        ext4_xattr_rehash(header(s->base),
-@@ -815,7 +1101,7 @@ ext4_xattr_block_set(handle_t *handle, s
+@@ -850,7 +1137,7 @@ ext4_xattr_block_set(handle_t *handle, s
                s->end = s->base + sb->s_blocksize;
        }
  
@@ -634,7 +633,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
        if (error == -EIO)
                goto bad_block;
        if (error)
-@@ -963,7 +1249,7 @@ int ext4_xattr_ibody_find(struct inode *
+@@ -1000,7 +1287,7 @@ int ext4_xattr_ibody_find(struct inode *
                /* Find the named attribute. */
                error = ext4_xattr_find_entry(&is->s.here, i->name_index,
                                              i->name, is->s.end -
@@ -643,7 +642,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                if (error && error != -ENODATA)
                        return error;
                is->s.not_found = error;
-@@ -981,7 +1267,7 @@ int ext4_xattr_ibody_inline_set(handle_t
+@@ -1018,7 +1305,7 @@ int ext4_xattr_ibody_inline_set(handle_t
  
        if (EXT4_I(inode)->i_extra_isize == 0)
                return -ENOSPC;
@@ -652,7 +651,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
        if (error) {
                if (error == -ENOSPC &&
                    ext4_has_inline_data(inode)) {
-@@ -993,7 +1279,7 @@ int ext4_xattr_ibody_inline_set(handle_t
+@@ -1030,7 +1317,7 @@ int ext4_xattr_ibody_inline_set(handle_t
                        error = ext4_xattr_ibody_find(inode, i, is);
                        if (error)
                                return error;
@@ -661,7 +660,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                }
                if (error)
                        return error;
-@@ -1019,7 +1305,7 @@ static int ext4_xattr_ibody_set(handle_t
+@@ -1056,7 +1343,7 @@ static int ext4_xattr_ibody_set(handle_t
  
        if (EXT4_I(inode)->i_extra_isize == 0)
                return -ENOSPC;
@@ -670,7 +669,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
        if (error)
                return error;
        header = IHDR(inode, ext4_raw_inode(&is->iloc));
-@@ -1055,7 +1341,7 @@ ext4_xattr_set_handle(handle_t *handle,
+@@ -1092,7 +1379,7 @@ ext4_xattr_set_handle(handle_t *handle,
                .name = name,
                .value = value,
                .value_len = value_len,
@@ -679,7 +678,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
        };
        struct ext4_xattr_ibody_find is = {
                .s = { .not_found = -ENODATA, },
-@@ -1120,6 +1406,15 @@ ext4_xattr_set_handle(handle_t *handle,
+@@ -1157,6 +1444,15 @@ ext4_xattr_set_handle(handle_t *handle,
                                        goto cleanup;
                        }
                        error = ext4_xattr_block_set(handle, inode, &i, &bs);
@@ -695,7 +694,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                        if (error)
                                goto cleanup;
                        if (!is.s.not_found) {
-@@ -1166,9 +1461,22 @@ ext4_xattr_set(struct inode *inode, int
+@@ -1203,9 +1499,22 @@ ext4_xattr_set(struct inode *inode, int
               const void *value, size_t value_len, int flags)
  {
        handle_t *handle;
@@ -718,7 +717,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
  retry:
        handle = ext4_journal_start(inode, EXT4_HT_XATTR, credits);
        if (IS_ERR(handle)) {
-@@ -1180,7 +1488,7 @@ retry:
+@@ -1217,7 +1526,7 @@ retry:
                                              value, value_len, flags);
                error2 = ext4_journal_stop(handle);
                if (error == -ENOSPC &&
@@ -727,7 +726,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                        goto retry;
                if (error == 0)
                        error = error2;
-@@ -1202,7 +1510,7 @@ static void ext4_xattr_shift_entries(str
+@@ -1239,7 +1548,7 @@ static void ext4_xattr_shift_entries(str
  
        /* Adjust the value offsets of the entries */
        for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) {
@@ -736,11 +735,10 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                        new_offs = le16_to_cpu(last->e_value_offs) +
                                                        value_offs_shift;
                        BUG_ON(new_offs + le32_to_cpu(last->e_value_size)
-@@ -1441,19 +1749,91 @@ cleanup:
+@@ -1477,21 +1786,135 @@ cleanup:
  }
  
  
--
 +#define EIA_INCR 16 /* must be 2^n */
 +#define EIA_MASK (EIA_INCR - 1)
 +/* Add the large xattr @ino into @lea_ino_array for later deletion.
@@ -783,6 +781,44 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
 +      (*lea_ino_array)->xia_inodes[(*lea_ino_array)->xia_count++] = ino;
 +      return 0;
 +}
++
++/**
++ * Add xattr inode to orphan list
++ */
++static int
++ext4_xattr_inode_orphan_add(handle_t *handle, struct inode *inode,
++                      int credits, struct ext4_xattr_ino_array *lea_ino_array)
++{
++      struct inode *ea_inode = NULL;
++      int idx = 0, error = 0;
++
++      if (lea_ino_array == NULL)
++              return 0;
++
++      for (; idx < lea_ino_array->xia_count; ++idx) {
++              if (!ext4_handle_has_enough_credits(handle, credits)) {
++                      error = ext4_journal_extend(handle, credits);
++                      if (error > 0)
++                              error = ext4_journal_restart(handle, credits);
++
++                      if (error != 0) {
++                              ext4_warning(inode->i_sb,
++                                      "couldn't extend journal "
++                                      "(err %d)", error);
++                              return error;
++                      }
++              }
++              ea_inode = ext4_xattr_inode_iget(inode,
++                              lea_ino_array->xia_inodes[idx], &error);
++              if (error)
++                      continue;
++              ext4_orphan_add(handle, ea_inode);
++              /* the inode's i_count will be released by caller */
++      }
++
++      return 0;
++}
  /*
   * ext4_xattr_delete_inode()
   *
@@ -807,13 +843,14 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
 +      struct ext4_iloc iloc;
 +      struct ext4_xattr_entry *entry;
 +      int credits = 3, error = 0;
-+
+-      if (!EXT4_I(inode)->i_file_acl)
 +      if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR))
 +              goto delete_external_ea;
 +
 +      error = ext4_get_inode_loc(inode, &iloc);
 +      if (error)
-+              goto cleanup;
+               goto cleanup;
 +      raw_inode = ext4_raw_inode(&iloc);
 +      header = IHDR(inode, raw_inode);
 +      entry = IFIRST(header);
@@ -828,12 +865,18 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
 +              entry->e_value_inum = 0;
 +      }
 +      brelse(iloc.bh);
++
 +delete_external_ea:
-       if (!EXT4_I(inode)->i_file_acl)
-               goto cleanup;
++      if (!EXT4_I(inode)->i_file_acl) {
++              /* add xattr inode to orphan list */
++              ext4_xattr_inode_orphan_add(handle, inode, credits,
++                                              *lea_ino_array);
++              goto cleanup;
++      }
        bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl);
-@@ -1468,11 +1848,88 @@ ext4_xattr_delete_inode(handle_t *handle
+       if (!bh) {
+               EXT4_ERROR_INODE(inode, "block %llu read error",
+@@ -1504,11 +1927,69 @@ ext4_xattr_delete_inode(handle_t *handle
                                 EXT4_I(inode)->i_file_acl);
                goto cleanup;
        }
@@ -849,30 +892,10 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
 +      }
 +
 +      /* add xattr inode to orphan list */
-+      if (*lea_ino_array != NULL) {
-+              struct inode *ea_inode = NULL;
-+              int idx = 0;
-+
-+              for (; idx < (*lea_ino_array)->xia_count; ++idx) {
-+                      if (!ext4_handle_has_enough_credits(handle, 3)) {
-+                              error = ext4_journal_extend(handle, 3);
-+                              if (error > 0)
-+                                      error = ext4_journal_restart(handle, 3);
-+                              if (error != 0) {
-+                                      ext4_warning(inode->i_sb,
-+                                              "couldn't extend journal "
-+                                              "(err %d)", error);
-+                                      goto cleanup;
-+                              }
-+                      }
-+                      ea_inode = ext4_xattr_inode_iget(inode,
-+                              (*lea_ino_array)->xia_inodes[idx], &error);
-+                      if (error)
-+                              continue;
-+                      ext4_orphan_add(handle, ea_inode);
-+                      /* the inode's i_count will be released by caller */
-+              }
-+      }
++      error = ext4_xattr_inode_orphan_add(handle, inode, credits,
++                                      *lea_ino_array);
++      if (error != 0)
++              goto cleanup;
 +
 +      if (!IS_NOQUOTA(inode))
 +              credits += 2 * EXT4_QUOTA_DEL_BLOCKS(inode->i_sb);
@@ -913,16 +936,17 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
 +                              lea_ino_array->xia_inodes[idx], &err);
 +              if (err)
 +                      continue;
-+              clear_nlink(ea_inode);
-+              iput(ea_inode);
 +              /* for inode's i_count get from ext4_xattr_delete_inode */
++              if (!list_empty(&EXT4_I(ea_inode)->i_orphan))
++                      iput(ea_inode);
++              clear_nlink(ea_inode);
 +              iput(ea_inode);
 +      }
 +      kfree(lea_ino_array);
  }
  
  /*
-@@ -1542,10 +1999,9 @@ ext4_xattr_cmp(struct ext4_xattr_header
+@@ -1578,10 +2059,9 @@ ext4_xattr_cmp(struct ext4_xattr_header
                    entry1->e_name_index != entry2->e_name_index ||
                    entry1->e_name_len != entry2->e_name_len ||
                    entry1->e_value_size != entry2->e_value_size ||
@@ -934,7 +958,7 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                if (memcmp((char *)header1 + le16_to_cpu(entry1->e_value_offs),
                           (char *)header2 + le16_to_cpu(entry2->e_value_offs),
                           le32_to_cpu(entry1->e_value_size)))
-@@ -1629,7 +2085,7 @@ static inline void ext4_xattr_hash_entry
+@@ -1665,7 +2145,7 @@ static inline void ext4_xattr_hash_entry
                       *name++;
        }
  
@@ -943,10 +967,10 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.c
                __le32 *value = (__le32 *)((char *)header +
                        le16_to_cpu(entry->e_value_offs));
                for (n = (le32_to_cpu(entry->e_value_size) +
-Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.h
+Index: linux-stage/fs/ext4/xattr.h
 ===================================================================
---- linux-3.10.0-123.13.2.el7.x86_64.orig/fs/ext4/xattr.h
-+++ linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.h
+--- linux-stage.orig/fs/ext4/xattr.h
++++ linux-stage/fs/ext4/xattr.h
 @@ -42,7 +42,7 @@ struct ext4_xattr_entry {
        __u8    e_name_len;     /* length of name */
        __u8    e_name_index;   /* attribute name index */
@@ -1000,11 +1024,11 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/xattr.h
  extern void ext4_xattr_put_super(struct super_block *);
  
  extern int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
-Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/ialloc.c
+Index: linux-stage/fs/ext4/ialloc.c
 ===================================================================
---- linux-3.10.0-123.13.2.el7.x86_64.orig/fs/ext4/ialloc.c
-+++ linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/ialloc.c
-@@ -250,7 +250,6 @@ void ext4_free_inode(handle_t *handle, s
+--- linux-stage.orig/fs/ext4/ialloc.c
++++ linux-stage/fs/ext4/ialloc.c
+@@ -269,7 +269,6 @@ void ext4_free_inode(handle_t *handle, s
         * as writing the quota to disk may need the lock as well.
         */
        dquot_initialize(inode);
@@ -1012,10 +1036,10 @@ Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/ialloc.c
        dquot_free_inode(inode);
        dquot_drop(inode);
  
-Index: linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/inline.c
+Index: linux-stage/fs/ext4/inline.c
 ===================================================================
---- linux-3.10.0-123.13.2.el7.x86_64.orig/fs/ext4/inline.c
-+++ linux-3.10.0-123.13.2.el7.x86_64/fs/ext4/inline.c
+--- linux-stage.orig/fs/ext4/inline.c
++++ linux-stage/fs/ext4/inline.c
 @@ -59,7 +59,7 @@ static int get_max_inline_xattr_value_si
  
        /* Compute min_offs. */
index 133006f..57e5f90 100644 (file)
@@ -1,8 +1,14 @@
+This patch implements the large EA support in ext4. If the size of
+an EA value is larger than the blocksize, then the EA value would
+not be saved in the external EA block, instead it would be saved
+in an external EA inode. So, the patch also helps support a larger
+number of EAs.
+
 Index: linux-stage/fs/ext4/ext4.h
 ===================================================================
 --- linux-stage.orig/fs/ext4/ext4.h
 +++ linux-stage/fs/ext4/ext4.h
-@@ -1412,6 +1412,7 @@ static inline void ext4_clear_state_flag
+@@ -1408,6 +1408,7 @@ static inline void ext4_clear_state_flag
                                         EXT4_FEATURE_INCOMPAT_EXTENTS| \
                                         EXT4_FEATURE_INCOMPAT_64BIT| \
                                         EXT4_FEATURE_INCOMPAT_FLEX_BG| \
@@ -10,8 +16,8 @@ Index: linux-stage/fs/ext4/ext4.h
                                         EXT4_FEATURE_INCOMPAT_MMP| \
                                         EXT4_FEATURE_INCOMPAT_DIRDATA)
  
-@@ -1775,6 +1776,12 @@ struct mmpd_data {
- #endif
+@@ -1764,6 +1765,12 @@ struct mmpd_data {
+ #define EXT4_MMP_MAX_CHECK_INTERVAL   300UL
  
  /*
 + * Maximum size of xattr attributes for FEATURE_INCOMPAT_EA_INODE 1Mb
@@ -23,7 +29,7 @@ Index: linux-stage/fs/ext4/ext4.h
   * Function prototypes
   */
  
-@@ -1786,6 +1793,10 @@ struct mmpd_data {
+@@ -1775,6 +1782,10 @@ struct mmpd_data {
  # define ATTRIB_NORET __attribute__((noreturn))
  # define NORET_AND    noreturn,
  
@@ -34,7 +40,7 @@ Index: linux-stage/fs/ext4/ext4.h
  /* bitmap.c */
  extern unsigned int ext4_count_free(char *bitmap, unsigned numchars);
  
-@@ -1905,6 +1916,7 @@ extern void ext4_set_inode_flags(struct
+@@ -1893,6 +1904,7 @@ extern void ext4_set_inode_flags(struct
  extern void ext4_get_inode_flags(struct ext4_inode_info *);
  extern int ext4_alloc_da_blocks(struct inode *inode);
  extern void ext4_set_aops(struct inode *inode);
@@ -128,7 +134,7 @@ Index: linux-stage/fs/ext4/inode.c
        return;
  no_delete:
        ext4_clear_inode(inode);        /* We must guarantee clearing of inode... */
-@@ -5551,7 +5584,7 @@ static int ext4_index_trans_blocks(struc
+@@ -5552,7 +5585,7 @@ static int ext4_index_trans_blocks(struc
   *
   * Also account for superblock, inode, quota and xattr blocks
   */
@@ -687,7 +693,7 @@ Index: linux-stage/fs/ext4/xattr.c
                        if (error)
                                goto cleanup;
                        if (!is.s.not_found) {
-@@ -1089,10 +1388,25 @@ ext4_xattr_set(struct inode *inode, int
+@@ -1088,10 +1387,25 @@ ext4_xattr_set(struct inode *inode, int
               const void *value, size_t value_len, int flags)
  {
        handle_t *handle;
@@ -714,7 +720,7 @@ Index: linux-stage/fs/ext4/xattr.c
        if (IS_ERR(handle)) {
                error = PTR_ERR(handle);
        } else {
-@@ -1102,7 +1416,7 @@ retry:
+@@ -1101,7 +1415,7 @@ retry:
                                              value, value_len, flags);
                error2 = ext4_journal_stop(handle);
                if (error == -ENOSPC &&
@@ -723,7 +729,7 @@ Index: linux-stage/fs/ext4/xattr.c
                        goto retry;
                if (error == 0)
                        error = error2;
-@@ -1124,7 +1438,7 @@ static void ext4_xattr_shift_entries(str
+@@ -1123,7 +1437,7 @@ static void ext4_xattr_shift_entries(str
  
        /* Adjust the value offsets of the entries */
        for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) {
@@ -732,11 +738,10 @@ Index: linux-stage/fs/ext4/xattr.c
                        new_offs = le16_to_cpu(last->e_value_offs) +
                                                        value_offs_shift;
                        BUG_ON(new_offs + le32_to_cpu(last->e_value_size)
-@@ -1359,20 +1673,92 @@ cleanup:
+@@ -1358,22 +1672,135 @@ cleanup:
        return error;
  }
  
--
 +#define EIA_INCR 16 /* must be 2^n */
 +#define EIA_MASK (EIA_INCR - 1)
 +/* Add the large xattr @ino into @lea_ino_array for later deletion.
@@ -779,6 +784,43 @@ Index: linux-stage/fs/ext4/xattr.c
 +      (*lea_ino_array)->xia_inodes[(*lea_ino_array)->xia_count++] = ino;
 +      return 0;
 +}
++
++/**
++ * Add xattr inode to orphan list
++ */
++static int
++ext4_xattr_inode_orphan_add(handle_t *handle, struct inode *inode,
++                      int credits, struct ext4_xattr_ino_array *lea_ino_array)
++{
++      struct inode *ea_inode = NULL;
++      int idx = 0, error = 0;
++
++      if (lea_ino_array == NULL)
++              return 0;
++      for (; idx < lea_ino_array->xia_count; ++idx) {
++              if (!ext4_handle_has_enough_credits(handle, credits)) {
++                      error = ext4_journal_extend(handle, credits);
++                      if (error > 0)
++                              error = ext4_journal_restart(handle, credits);
++
++                      if (error != 0) {
++                              ext4_warning(inode->i_sb,
++                                      "couldn't extend journal "
++                                      "(err %d)", error);
++                              return error;
++                      }
++              }
++              ea_inode = ext4_xattr_inode_iget(inode,
++                              lea_ino_array->xia_inodes[idx], &error);
++              if (error)
++                      continue;
++              ext4_orphan_add(handle, ea_inode);
++              /* the inode's i_count will be released by caller */
++      }
++
++      return 0;
++}
  
  /*
   * ext4_xattr_delete_inode()
@@ -804,13 +846,14 @@ Index: linux-stage/fs/ext4/xattr.c
 +      struct ext4_iloc iloc;
 +      struct ext4_xattr_entry *entry;
 +      int credits = 3, error = 0;
-+
+-      if (!EXT4_I(inode)->i_file_acl)
 +      if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR))
 +              goto delete_external_ea;
 +
 +      error = ext4_get_inode_loc(inode, &iloc);
 +      if (error)
-+              goto cleanup;
+               goto cleanup;
 +      raw_inode = ext4_raw_inode(&iloc);
 +      header = IHDR(inode, raw_inode);
 +      entry = IFIRST(header);
@@ -825,12 +868,18 @@ Index: linux-stage/fs/ext4/xattr.c
 +              entry->e_value_inum = 0;
 +      }
 +      brelse(iloc.bh);
++
 +delete_external_ea:
-       if (!EXT4_I(inode)->i_file_acl)
-               goto cleanup;
++      if (!EXT4_I(inode)->i_file_acl) {
++              /* add xattr inode to orphan list */
++              ext4_xattr_inode_orphan_add(handle, inode, credits,
++                                              *lea_ino_array);
++              goto cleanup;
++      }
        bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl);
-@@ -1387,11 +1770,88 @@ ext4_xattr_delete_inode(handle_t *handle
+       if (!bh) {
+               EXT4_ERROR_INODE(inode, "block %llu read error",
+@@ -1386,11 +1813,69 @@ ext4_xattr_delete_inode(handle_t *handle
                                 EXT4_I(inode)->i_file_acl);
                goto cleanup;
        }
@@ -846,30 +895,10 @@ Index: linux-stage/fs/ext4/xattr.c
 +      }
 +
 +      /* adding xattr inode to orphan list */
-+      if (*lea_ino_array != NULL) {
-+              struct inode *ea_inode = NULL;
-+              int idx = (*lea_ino_array)->xia_count;
-+
-+              for (idx = 0; idx < (*lea_ino_array)->xia_count; ++idx) {
-+                      if (!ext4_handle_has_enough_credits(handle, credits)) {
-+                              error = ext4_journal_extend(handle, credits);
-+                              if (error > 0)
-+                                      error = ext4_journal_restart(handle, credits);
-+                              if (error != 0) {
-+                                      ext4_warning(inode->i_sb,
-+                                              "couldn't extend journal "
-+                                              "(err %d)", error);
-+                                      goto cleanup;
-+                              }
-+                      }
-+                      ea_inode = ext4_xattr_inode_iget(inode,
-+                              (*lea_ino_array)->xia_inodes[idx], &error);
-+                      if (error)
-+                              continue;
-+                      ext4_orphan_add(handle, ea_inode);
-+                      /* the inode's i_count will be released by caller */
-+              }
-+      }
++      error = ext4_xattr_inode_orphan_add(handle, inode, credits,
++                                      *lea_ino_array);
++      if (error != 0)
++              goto cleanup;
 +
 +      if (!IS_NOQUOTA(inode))
 +              credits += 2 * EXT4_QUOTA_DEL_BLOCKS(inode->i_sb);
@@ -910,16 +939,17 @@ Index: linux-stage/fs/ext4/xattr.c
 +                              lea_ino_array->xia_inodes[idx], &err);
 +              if (err)
 +                      continue;
-+              ea_inode->i_nlink = 0;
-+              iput(ea_inode);
 +              /* for inode's i_count get from ext4_xattr_delete_inode */
++              if (!list_empty(&EXT4_I(ea_inode)->i_orphan))
++                      iput(ea_inode);
++              ea_inode->i_nlink = 0;
 +              iput(ea_inode);
 +      }
 +      kfree(lea_ino_array);
  }
  
  /*
-@@ -1461,10 +1921,9 @@ ext4_xattr_cmp(struct ext4_xattr_header
+@@ -1460,10 +1945,9 @@ ext4_xattr_cmp(struct ext4_xattr_header
                    entry1->e_name_index != entry2->e_name_index ||
                    entry1->e_name_len != entry2->e_name_len ||
                    entry1->e_value_size != entry2->e_value_size ||
@@ -931,7 +961,7 @@ Index: linux-stage/fs/ext4/xattr.c
                if (memcmp((char *)header1 + le16_to_cpu(entry1->e_value_offs),
                           (char *)header2 + le16_to_cpu(entry2->e_value_offs),
                           le32_to_cpu(entry1->e_value_size)))
-@@ -1548,7 +2007,7 @@ static inline void ext4_xattr_hash_entry
+@@ -1547,7 +2031,7 @@ static inline void ext4_xattr_hash_entry
                       *name++;
        }
  
@@ -1002,7 +1032,7 @@ Index: linux-stage/fs/ext4/ialloc.c
 ===================================================================
 --- linux-stage.orig/fs/ext4/ialloc.c
 +++ linux-stage/fs/ext4/ialloc.c
-@@ -222,7 +222,6 @@ void ext4_free_inode(handle_t *handle, s
+@@ -221,7 +221,6 @@ void ext4_free_inode(handle_t *handle, s
         * as writing the quota to disk may need the lock as well.
         */
        dquot_initialize(inode);
index 8f972ac..d596093 100644 (file)
@@ -4,11 +4,11 @@ not be saved in the external EA block, instead it would be saved
 in an external EA inode. So, the patch also helps support a larger
 number of EAs.
 
-Index: linux-3.12.39-47.1/fs/ext4/ext4.h
+Index: linux-stage/fs/ext4/ext4.h
 ===================================================================
---- linux-3.12.39-47.1.orig/fs/ext4/ext4.h
-+++ linux-3.12.39-47.1/fs/ext4/ext4.h
-@@ -1538,6 +1538,7 @@ static inline void ext4_clear_state_flag
+--- linux-stage.orig/fs/ext4/ext4.h
++++ linux-stage/fs/ext4/ext4.h
+@@ -1545,6 +1545,7 @@ static inline void ext4_clear_state_flag
                                         EXT4_FEATURE_INCOMPAT_EXTENTS| \
                                         EXT4_FEATURE_INCOMPAT_64BIT| \
                                         EXT4_FEATURE_INCOMPAT_FLEX_BG| \
@@ -16,7 +16,7 @@ Index: linux-3.12.39-47.1/fs/ext4/ext4.h
                                         EXT4_FEATURE_INCOMPAT_MMP |    \
                                         EXT4_FEATURE_INCOMPAT_DIRDATA| \
                                         EXT4_FEATURE_INCOMPAT_INLINE_DATA)
-@@ -1938,6 +1939,12 @@ struct mmpd_data {
+@@ -1945,6 +1946,12 @@ struct mmpd_data {
  #define EXT4_MMP_MAX_CHECK_INTERVAL   300UL
  
  /*
@@ -29,7 +29,7 @@ Index: linux-3.12.39-47.1/fs/ext4/ext4.h
   * Function prototypes
   */
  
-@@ -1949,6 +1956,10 @@ struct mmpd_data {
+@@ -1956,6 +1963,10 @@ struct mmpd_data {
  # define ATTRIB_NORET __attribute__((noreturn))
  # define NORET_AND    noreturn,
  
@@ -40,7 +40,7 @@ Index: linux-3.12.39-47.1/fs/ext4/ext4.h
  /* bitmap.c */
  extern unsigned int ext4_count_free(char *bitmap, unsigned numchars);
  void ext4_inode_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
-@@ -2162,6 +2173,7 @@ extern void ext4_set_inode_flags(struct
+@@ -2169,6 +2180,7 @@ extern void ext4_set_inode_flags(struct
  extern void ext4_get_inode_flags(struct ext4_inode_info *);
  extern int ext4_alloc_da_blocks(struct inode *inode);
  extern void ext4_set_aops(struct inode *inode);
@@ -48,10 +48,10 @@ Index: linux-3.12.39-47.1/fs/ext4/ext4.h
  extern int ext4_writepage_trans_blocks(struct inode *);
  extern int ext4_chunk_trans_blocks(struct inode *, int nrblocks);
  extern int ext4_block_truncate_page(handle_t *handle,
-Index: linux-3.12.39-47.1/fs/ext4/inode.c
+Index: linux-stage/fs/ext4/inode.c
 ===================================================================
---- linux-3.12.39-47.1.orig/fs/ext4/inode.c
-+++ linux-3.12.39-47.1/fs/ext4/inode.c
+--- linux-stage.orig/fs/ext4/inode.c
++++ linux-stage/fs/ext4/inode.c
 @@ -135,8 +135,6 @@ static void ext4_invalidatepage(struct p
                                unsigned int length);
  static int __ext4_journalled_writepage(struct page *page, unsigned int len);
@@ -81,7 +81,7 @@ Index: linux-3.12.39-47.1/fs/ext4/inode.c
        if (IS_ERR(handle)) {
                ext4_std_error(inode->i_sb, PTR_ERR(handle));
                /*
-@@ -248,9 +248,33 @@ void ext4_evict_inode(struct inode *inod
+@@ -248,9 +248,36 @@ void ext4_evict_inode(struct inode *inod
                sb_end_intwrite(inode->i_sb);
                goto no_delete;
        }
@@ -99,6 +99,9 @@ Index: linux-3.12.39-47.1/fs/ext4/inode.c
 +              goto stop_handle;
 +      }
 +
++      if (!IS_NOQUOTA(inode))
++              extra_credits += 2 * EXT4_QUOTA_DEL_BLOCKS(inode->i_sb);
++
 +      if (!ext4_handle_has_enough_credits(handle,
 +                      ext4_blocks_for_truncate(inode) + extra_credits)) {
 +              err = ext4_journal_extend(handle,
@@ -116,7 +119,7 @@ Index: linux-3.12.39-47.1/fs/ext4/inode.c
        inode->i_size = 0;
        err = ext4_mark_inode_dirty(handle, inode);
        if (err) {
-@@ -305,8 +329,12 @@ void ext4_evict_inode(struct inode *inod
+@@ -305,8 +332,12 @@ void ext4_evict_inode(struct inode *inod
                ext4_clear_inode(inode);
        else
                ext4_free_inode(handle, inode);
@@ -129,7 +132,7 @@ Index: linux-3.12.39-47.1/fs/ext4/inode.c
        return;
  no_delete:
        ext4_clear_inode(inode);        /* We must guarantee clearing of inode... */
-@@ -4754,7 +4782,7 @@ static int ext4_index_trans_blocks(struc
+@@ -4777,7 +4808,7 @@ static int ext4_index_trans_blocks(struc
   *
   * Also account for superblock, inode, quota and xattr blocks
   */
@@ -138,10 +141,10 @@ Index: linux-3.12.39-47.1/fs/ext4/inode.c
                                  int pextents)
  {
        ext4_group_t groups, ngroups = ext4_get_groups_count(inode->i_sb);
-Index: linux-3.12.39-47.1/fs/ext4/xattr.c
+Index: linux-stage/fs/ext4/xattr.c
 ===================================================================
---- linux-3.12.39-47.1.orig/fs/ext4/xattr.c
-+++ linux-3.12.39-47.1/fs/ext4/xattr.c
+--- linux-stage.orig/fs/ext4/xattr.c
++++ linux-stage/fs/ext4/xattr.c
 @@ -233,19 +233,26 @@ ext4_xattr_check_block(struct inode *ino
  }
  
@@ -351,7 +354,8 @@ Index: linux-3.12.39-47.1/fs/ext4/xattr.c
 +/*
 + * Write the value of the EA in an inode.
 + */
-+static int
+ static int
+-ext4_xattr_set_entry(struct ext4_xattr_info *i, struct ext4_xattr_search *s)
 +ext4_xattr_inode_write(handle_t *handle, struct inode *ea_inode,
 +                     const void *buf, int bufsize)
 +{
@@ -473,8 +477,7 @@ Index: linux-3.12.39-47.1/fs/ext4/xattr.c
 +/*
 + * Add value of the EA in an inode.
 + */
- static int
--ext4_xattr_set_entry(struct ext4_xattr_info *i, struct ext4_xattr_search *s)
++static int
 +ext4_xattr_inode_set(handle_t *handle, struct inode *inode, int *ea_ino,
 +                   const void *value, size_t value_len)
 +{
@@ -732,11 +735,10 @@ Index: linux-3.12.39-47.1/fs/ext4/xattr.c
                        new_offs = le16_to_cpu(last->e_value_offs) +
                                                        value_offs_shift;
                        BUG_ON(new_offs + le32_to_cpu(last->e_value_size)
-@@ -1472,19 +1781,91 @@ cleanup:
+@@ -1472,21 +1781,135 @@ cleanup:
  }
  
  
--
 +#define EIA_INCR 16 /* must be 2^n */
 +#define EIA_MASK (EIA_INCR - 1)
 +/* Add the large xattr @ino into @lea_ino_array for later deletion.
@@ -779,6 +781,44 @@ Index: linux-3.12.39-47.1/fs/ext4/xattr.c
 +      (*lea_ino_array)->xia_inodes[(*lea_ino_array)->xia_count++] = ino;
 +      return 0;
 +}
++
++/**
++ * Add xattr inode to orphan list
++ */
++static int
++ext4_xattr_inode_orphan_add(handle_t *handle, struct inode *inode,
++                      int credits, struct ext4_xattr_ino_array *lea_ino_array)
++{
++      struct inode *ea_inode = NULL;
++      int idx = 0, error = 0;
++
++      if (lea_ino_array == NULL)
++              return 0;
++
++      for (; idx < lea_ino_array->xia_count; ++idx) {
++              if (!ext4_handle_has_enough_credits(handle, credits)) {
++                      error = ext4_journal_extend(handle, credits);
++                      if (error > 0)
++                              error = ext4_journal_restart(handle, credits);
++
++                      if (error != 0) {
++                              ext4_warning(inode->i_sb,
++                                      "couldn't extend journal "
++                                      "(err %d)", error);
++                              return error;
++                      }
++              }
++              ea_inode = ext4_xattr_inode_iget(inode,
++                              lea_ino_array->xia_inodes[idx], &error);
++              if (error)
++                      continue;
++              ext4_orphan_add(handle, ea_inode);
++              /* the inode's i_count will be released by caller */
++      }
++
++      return 0;
++}
  /*
   * ext4_xattr_delete_inode()
   *
@@ -802,14 +842,15 @@ Index: linux-3.12.39-47.1/fs/ext4/xattr.c
 +      struct ext4_inode *raw_inode;
 +      struct ext4_iloc iloc;
 +      struct ext4_xattr_entry *entry;
-+      int error = 0;
-+
++      int credits = 3, error = 0;
+-      if (!EXT4_I(inode)->i_file_acl)
 +      if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR))
 +              goto delete_external_ea;
 +
 +      error = ext4_get_inode_loc(inode, &iloc);
 +      if (error)
-+              goto cleanup;
+               goto cleanup;
 +      raw_inode = ext4_raw_inode(&iloc);
 +      header = IHDR(inode, raw_inode);
 +      entry = IFIRST(header);
@@ -824,12 +865,18 @@ Index: linux-3.12.39-47.1/fs/ext4/xattr.c
 +              entry->e_value_inum = 0;
 +      }
 +      brelse(iloc.bh);
++
 +delete_external_ea:
-       if (!EXT4_I(inode)->i_file_acl)
-               goto cleanup;
++      if (!EXT4_I(inode)->i_file_acl) {
++              /* add xattr inode to orphan list */
++              ext4_xattr_inode_orphan_add(handle, inode, credits,
++                                              *lea_ino_array);
++              goto cleanup;
++      }
        bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl);
-@@ -1499,11 +1880,74 @@ ext4_xattr_delete_inode(handle_t *handle
+       if (!bh) {
+               EXT4_ERROR_INODE(inode, "block %llu read error",
+@@ -1499,11 +1922,69 @@ ext4_xattr_delete_inode(handle_t *handle
                                 EXT4_I(inode)->i_file_acl);
                goto cleanup;
        }
@@ -845,28 +892,22 @@ Index: linux-3.12.39-47.1/fs/ext4/xattr.c
 +      }
 +
 +      /* add xattr inode to orphan list */
-+      if (*lea_ino_array != NULL) {
-+              struct inode *ea_inode = NULL;
-+              int idx = 0;
-+
-+              for (; idx < (*lea_ino_array)->xia_count; ++idx) {
-+                      if (!ext4_handle_has_enough_credits(handle, 3)) {
-+                              error = ext4_journal_extend(handle, 3);
-+                              if (error > 0)
-+                                      error = ext4_journal_restart(handle, 3);
-+                              if (error != 0) {
-+                                      ext4_warning(inode->i_sb,
-+                                              "couldn't extend journal "
-+                                              "(err %d)", error);
-+                                      goto cleanup;
-+                              }
-+                      }
-+                      ea_inode = ext4_xattr_inode_iget(inode,
-+                              (*lea_ino_array)->xia_inodes[idx], &error);
-+                      if (error)
-+                              continue;
-+                      ext4_orphan_add(handle, ea_inode);
-+                      /* the inode's i_count will be released by caller */
++      error = ext4_xattr_inode_orphan_add(handle, inode, credits,
++                                      *lea_ino_array);
++      if (error != 0)
++              goto cleanup;
++
++      if (!IS_NOQUOTA(inode))
++              credits += 2 * EXT4_QUOTA_DEL_BLOCKS(inode->i_sb);
++
++      if (!ext4_handle_has_enough_credits(handle, credits)) {
++              error = ext4_journal_extend(handle, credits);
++              if (error > 0)
++                      error = ext4_journal_restart(handle, credits);
++              if (error != 0) {
++                      ext4_warning(inode->i_sb,
++                              "couldn't extend journal (err %d)", error);
++                      goto cleanup;
 +              }
 +      }
 +
@@ -895,16 +936,17 @@ Index: linux-3.12.39-47.1/fs/ext4/xattr.c
 +                              lea_ino_array->xia_inodes[idx], &err);
 +              if (err)
 +                      continue;
-+              clear_nlink(ea_inode);
-+              iput(ea_inode);
 +              /* for inode's i_count get from ext4_xattr_delete_inode */
++              if (!list_empty(&EXT4_I(ea_inode)->i_orphan))
++                      iput(ea_inode);
++              clear_nlink(ea_inode);
 +              iput(ea_inode);
 +      }
 +      kfree(lea_ino_array);
  }
  
  /*
-@@ -1573,10 +2017,9 @@ ext4_xattr_cmp(struct ext4_xattr_header
+@@ -1573,10 +2054,9 @@ ext4_xattr_cmp(struct ext4_xattr_header
                    entry1->e_name_index != entry2->e_name_index ||
                    entry1->e_name_len != entry2->e_name_len ||
                    entry1->e_value_size != entry2->e_value_size ||
@@ -916,7 +958,7 @@ Index: linux-3.12.39-47.1/fs/ext4/xattr.c
                if (memcmp((char *)header1 + le16_to_cpu(entry1->e_value_offs),
                           (char *)header2 + le16_to_cpu(entry2->e_value_offs),
                           le32_to_cpu(entry1->e_value_size)))
-@@ -1660,7 +2103,7 @@ static inline void ext4_xattr_hash_entry
+@@ -1660,7 +2140,7 @@ static inline void ext4_xattr_hash_entry
                       *name++;
        }
  
@@ -925,10 +967,10 @@ Index: linux-3.12.39-47.1/fs/ext4/xattr.c
                __le32 *value = (__le32 *)((char *)header +
                        le16_to_cpu(entry->e_value_offs));
                for (n = (le32_to_cpu(entry->e_value_size) +
-Index: linux-3.12.39-47.1/fs/ext4/xattr.h
+Index: linux-stage/fs/ext4/xattr.h
 ===================================================================
---- linux-3.12.39-47.1.orig/fs/ext4/xattr.h
-+++ linux-3.12.39-47.1/fs/ext4/xattr.h
+--- linux-stage.orig/fs/ext4/xattr.h
++++ linux-stage/fs/ext4/xattr.h
 @@ -42,7 +42,7 @@ struct ext4_xattr_entry {
        __u8    e_name_len;     /* length of name */
        __u8    e_name_index;   /* attribute name index */
@@ -982,10 +1024,10 @@ Index: linux-3.12.39-47.1/fs/ext4/xattr.h
  extern void ext4_xattr_put_super(struct super_block *);
  
  extern int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
-Index: linux-3.12.39-47.1/fs/ext4/ialloc.c
+Index: linux-stage/fs/ext4/ialloc.c
 ===================================================================
---- linux-3.12.39-47.1.orig/fs/ext4/ialloc.c
-+++ linux-3.12.39-47.1/fs/ext4/ialloc.c
+--- linux-stage.orig/fs/ext4/ialloc.c
++++ linux-stage/fs/ext4/ialloc.c
 @@ -252,7 +252,6 @@ void ext4_free_inode(handle_t *handle, s
         * as writing the quota to disk may need the lock as well.
         */
@@ -994,10 +1036,10 @@ Index: linux-3.12.39-47.1/fs/ext4/ialloc.c
        dquot_free_inode(inode);
        dquot_drop(inode);
  
-Index: linux-3.12.39-47.1/fs/ext4/inline.c
+Index: linux-stage/fs/ext4/inline.c
 ===================================================================
---- linux-3.12.39-47.1.orig/fs/ext4/inline.c
-+++ linux-3.12.39-47.1/fs/ext4/inline.c
+--- linux-stage.orig/fs/ext4/inline.c
++++ linux-stage/fs/ext4/inline.c
 @@ -59,7 +59,7 @@ static int get_max_inline_xattr_value_si
  
        /* Compute min_offs. */