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| \
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
/*
* 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,
/* 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);
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);
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;
}
+ 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,
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);
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
*/
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
}
+/*
+ * 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)
+{
+/*
+ * 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)
+{
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.
+ (*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()
*
+ 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);
+ 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;
}
+ }
+
+ /* 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;
+ }
+ }
+
+ 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 ||
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++;
}
__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 */
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.
*/
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. */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff