-diff -ur linux-stage.orig/fs/ext4/ext4.h linux-stage/fs/ext4/ext4.h
---- linux-stage.orig/fs/ext4/ext4.h 2012-12-31 15:56:25.000000000 -0500
-+++ linux-stage/fs/ext4/ext4.h 2012-12-31 15:56:48.000000000 -0500
-@@ -1406,6 +1406,7 @@
+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
+@@ -1408,6 +1408,7 @@ static inline void ext4_clear_state_flag
EXT4_FEATURE_INCOMPAT_EXTENTS| \
EXT4_FEATURE_INCOMPAT_64BIT| \
EXT4_FEATURE_INCOMPAT_FLEX_BG| \
+ EXT4_FEATURE_INCOMPAT_EA_INODE| \
EXT4_FEATURE_INCOMPAT_MMP| \
EXT4_FEATURE_INCOMPAT_DIRDATA)
-
-@@ -1774,6 +1775,12 @@
- #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
+ * This limit is arbitrary, but is reasonable for the xattr API.
+/*
* Function prototypes
*/
-
-@@ -2005,6 +2005,7 @@
+
+@@ -1775,6 +1782,10 @@ struct mmpd_data {
+ # define ATTRIB_NORET __attribute__((noreturn))
+ # define NORET_AND noreturn,
+
++struct ext4_xattr_ino_array {
++ unsigned int xia_count; /* # of used item in the array */
++ unsigned int xia_inodes[0];
++};
+ /* bitmap.c */
+ extern unsigned int ext4_count_free(char *bitmap, unsigned numchars);
+
+@@ -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);
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,
-diff -ur linux-stage.orig/fs/ext4/inode.c linux-stage/fs/ext4/inode.c
---- linux-stage.orig/fs/ext4/inode.c 2013-01-03 09:31:07.000000000 -0500
-+++ linux-stage/fs/ext4/inode.c 2013-01-03 09:31:23.000000000 -0500
-@@ -5535,7 +5535,7 @@
+Index: linux-stage/fs/ext4/inode.c
+===================================================================
+--- linux-stage.orig/fs/ext4/inode.c
++++ linux-stage/fs/ext4/inode.c
+@@ -187,6 +187,8 @@ void ext4_evict_inode(struct inode *inod
+ {
+ handle_t *handle;
+ int err;
++ int extra_credits = 3;
++ struct ext4_xattr_ino_array *lea_ino_array = NULL;
+
+ trace_ext4_evict_inode(inode);
+
+@@ -207,7 +209,10 @@ void ext4_evict_inode(struct inode *inod
+ if (is_bad_inode(inode))
+ goto no_delete;
+
+- handle = ext4_journal_start(inode, blocks_for_truncate(inode)+3);
++ /*
++ * Delete xattr inode before deleting the main inode.
++ */
++ handle = ext4_journal_start(inode, extra_credits);
+ if (IS_ERR(handle)) {
+ ext4_std_error(inode->i_sb, PTR_ERR(handle));
+ /*
+@@ -218,9 +223,33 @@ void ext4_evict_inode(struct inode *inod
+ ext4_orphan_del(NULL, inode);
+ goto no_delete;
+ }
+-
+ if (IS_SYNC(inode))
+ ext4_handle_sync(handle);
++
++ err = ext4_xattr_delete_inode(handle, inode, &lea_ino_array);
++ if (err) {
++ ext4_warning(inode->i_sb,
++ "couldn't delete inode's xattr (err %d)", err);
++ goto stop_handle;
++ }
++
++ if (!IS_NOQUOTA(inode))
++ extra_credits += 2 * EXT4_QUOTA_DEL_BLOCKS(inode->i_sb);
++
++ if (!ext4_handle_has_enough_credits(handle,
++ blocks_for_truncate(inode) + extra_credits)) {
++ err = ext4_journal_extend(handle,
++ blocks_for_truncate(inode) + extra_credits);
++ if (err > 0)
++ err = ext4_journal_restart(handle,
++ blocks_for_truncate(inode) + extra_credits);
++ if (err != 0) {
++ ext4_warning(inode->i_sb,
++ "couldn't extend journal (err %d)", err);
++ goto stop_handle;
++ }
++ }
++
+ inode->i_size = 0;
+ err = ext4_mark_inode_dirty(handle, inode);
+ if (err) {
+@@ -237,10 +266,10 @@ void ext4_evict_inode(struct inode *inod
+ * enough credits left in the handle to remove the inode from
+ * the orphan list and set the dtime field.
+ */
+- if (!ext4_handle_has_enough_credits(handle, 3)) {
+- err = ext4_journal_extend(handle, 3);
++ if (!ext4_handle_has_enough_credits(handle, extra_credits)) {
++ err = ext4_journal_extend(handle, extra_credits);
+ if (err > 0)
+- err = ext4_journal_restart(handle, 3);
++ err = ext4_journal_restart(handle, extra_credits);
+ if (err != 0) {
+ ext4_warning(inode->i_sb,
+ "couldn't extend journal (err %d)", err);
+@@ -274,7 +303,11 @@ void ext4_evict_inode(struct inode *inod
+ ext4_clear_inode(inode);
+ else
+ ext4_free_inode(handle, inode);
++
+ ext4_journal_stop(handle);
++
++ if (lea_ino_array != NULL)
++ ext4_xattr_inode_array_free(inode, lea_ino_array);
+ return;
+ no_delete:
+ ext4_clear_inode(inode); /* We must guarantee clearing of inode... */
+@@ -5552,7 +5585,7 @@ static int ext4_index_trans_blocks(struc
*
* Also account for superblock, inode, quota and xattr blocks
*/
{
ext4_group_t groups, ngroups = ext4_get_groups_count(inode->i_sb);
int gdpblocks;
-diff -ur linux-stage.orig/fs/ext4/xattr.c linux-stage/fs/ext4/xattr.c
---- linux-stage.orig/fs/ext4/xattr.c 2012-12-31 15:56:25.000000000 -0500
-+++ linux-stage/fs/ext4/xattr.c 2012-12-31 15:56:48.000000000 -0500
-@@ -168,19 +168,26 @@
+Index: linux-stage/fs/ext4/xattr.c
+===================================================================
+--- linux-stage.orig/fs/ext4/xattr.c
++++ linux-stage/fs/ext4/xattr.c
+@@ -168,19 +168,26 @@ ext4_xattr_check_block(struct buffer_hea
}
-
+
static inline int
-ext4_xattr_check_entry(struct ext4_xattr_entry *entry, size_t size)
+ext4_xattr_check_entry(struct ext4_xattr_entry *entry, size_t size,
+ struct inode *inode)
{
size_t value_size = le32_to_cpu(entry->e_value_size);
-
+
- if (entry->e_value_block != 0 || value_size > size ||
-- le16_to_cpu(entry->e_value_offs) + value_size > size)
-+ if ((entry->e_value_inum == 0) &&
-+ (le16_to_cpu(entry->e_value_offs) + value_size > size))
++ if (!entry->e_value_inum &&
+ le16_to_cpu(entry->e_value_offs) + value_size > size)
+ return -EIO;
-+ if (entry->e_value_inum != 0 &&
++ if (entry->e_value_inum &&
+ (le32_to_cpu(entry->e_value_inum) < EXT4_FIRST_INO(inode->i_sb) ||
+ le32_to_cpu(entry->e_value_inum) >
+ le32_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_inodes_count)))
return -EIO;
return 0;
}
-
+
static int
ext4_xattr_find_entry(struct ext4_xattr_entry **pentry, int name_index,
- const char *name, size_t size, int sorted)
{
struct ext4_xattr_entry *entry;
size_t name_len;
-@@ -200,11 +207,103 @@
+@@ -200,11 +207,104 @@ ext4_xattr_find_entry(struct ext4_xattr_
break;
}
*pentry = entry;
return -EIO;
return cmp ? -ENODATA : 0;
}
-
+
+/*
+ * Read the EA value from an inode.
+ */
+ return err;
+}
+
-+struct inode *ext4_xattr_inode_iget(struct inode *parent, int ea_ino, int *err)
++struct inode *ext4_xattr_inode_iget(struct inode *parent, unsigned long ea_ino, int *err)
+{
+ struct inode *ea_inode = NULL;
+
+ ea_inode = ext4_iget(parent->i_sb, ea_ino);
+ if (IS_ERR(ea_inode) || is_bad_inode(ea_inode)) {
-+ ext4_error(parent->i_sb, "error while reading EA inode %d",
-+ ea_ino);
-+ *err = -EIO;
++ int rc = IS_ERR(ea_inode) ? PTR_ERR(ea_inode) : 0;
++ ext4_error(parent->i_sb, "error while reading EA inode %lu "
++ "/ %d %d", ea_ino, rc, is_bad_inode(ea_inode));
++ *err = rc != 0 ? rc : -EIO;
+ return NULL;
+ }
+
-+ if (ea_inode->i_xattr_inode_parent != parent->i_ino ||
++ if (EXT4_XATTR_INODE_GET_PARENT(ea_inode) != parent->i_ino ||
+ ea_inode->i_generation != parent->i_generation) {
-+ ext4_error(parent->i_sb, "Backpointer from EA inode %d "
++ ext4_error(parent->i_sb, "Backpointer from EA inode %lu "
+ "to parent invalid.", ea_ino);
+ *err = -EINVAL;
+ goto error;
+ }
+
+ if (!(EXT4_I(ea_inode)->i_flags & EXT4_EA_INODE_FL)) {
-+ ext4_error(parent->i_sb, "EA inode %d does not have "
++ ext4_error(parent->i_sb, "EA inode %lu does not have "
+ "EXT4_EA_INODE_FL flag set.\n", ea_ino);
+ *err = -EINVAL;
+ goto error;
+ * Read the value from the EA inode.
+ */
+static int
-+ext4_xattr_inode_get(struct inode *inode, int ea_ino, void *buffer,
++ext4_xattr_inode_get(struct inode *inode, unsigned long ea_ino, void *buffer,
+ size_t *size)
+{
+ struct inode *ea_inode = NULL;
static int
ext4_xattr_block_get(struct inode *inode, int name_index, const char *name,
void *buffer, size_t buffer_size)
-@@ -235,7 +334,8 @@
+@@ -235,7 +334,8 @@ bad_block:
}
ext4_xattr_cache_insert(bh);
entry = BFIRST(bh);
if (error == -EIO)
goto bad_block;
if (error)
-@@ -245,8 +345,16 @@
+@@ -245,8 +345,16 @@ bad_block:
error = -ERANGE;
if (size > buffer_size)
goto cleanup;
- memcpy(buffer, bh->b_data + le16_to_cpu(entry->e_value_offs),
- size);
-+ if (entry->e_value_inum != 0) {
++ if (entry->e_value_inum) {
+ error = ext4_xattr_inode_get(inode,
+ le32_to_cpu(entry->e_value_inum),
+ buffer, &size);
+ }
}
error = size;
-
-@@ -280,7 +388,7 @@
+
+@@ -280,7 +388,7 @@ ext4_xattr_ibody_get(struct inode *inode
if (error)
goto cleanup;
error = ext4_xattr_find_entry(&entry, name_index, name,
if (error)
goto cleanup;
size = le32_to_cpu(entry->e_value_size);
-@@ -288,8 +396,16 @@
+@@ -288,8 +396,16 @@ ext4_xattr_ibody_get(struct inode *inode
error = -ERANGE;
if (size > buffer_size)
goto cleanup;
- memcpy(buffer, (void *)IFIRST(header) +
- le16_to_cpu(entry->e_value_offs), size);
-+ if (entry->e_value_inum != 0) {
++ if (entry->e_value_inum) {
+ error = ext4_xattr_inode_get(inode,
+ le32_to_cpu(entry->e_value_inum),
+ buffer, &size);
+ }
}
error = size;
-
-@@ -514,7 +630,7 @@
+
+@@ -514,7 +630,7 @@ static size_t ext4_xattr_free_space(stru
{
for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) {
*total += EXT4_XATTR_LEN(last->e_name_len);
- if (!last->e_value_block && last->e_value_size) {
-+ if (last->e_value_inum == 0 && last->e_value_size > 0) {
++ if (!last->e_value_inum && last->e_value_size) {
size_t offs = le16_to_cpu(last->e_value_offs);
if (offs < *min_offs)
*min_offs = offs;
-@@ -523,11 +639,162 @@
+@@ -523,11 +639,162 @@ 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.
+ */
+ * A back-pointer from EA inode to parent inode will be useful
+ * for e2fsck.
+ */
-+ ea_inode->i_xattr_inode_parent = inode->i_ino;
++ EXT4_XATTR_INODE_SET_PARENT(ea_inode, inode->i_ino);
+ unlock_new_inode(ea_inode);
+ }
+
+/*
+ * Unlink the inode storing the value of the EA.
+ */
-+static int
-+ext4_xattr_inode_unlink(struct inode *inode, int ea_ino)
++int
++ext4_xattr_inode_unlink(struct inode *inode, unsigned long ea_ino)
+{
+ struct inode *ea_inode = NULL;
+ int err;
+ * Add value of the EA in an inode.
+ */
+static int
-+ext4_xattr_inode_set(handle_t *handle, struct inode *inode, int *ea_ino,
++ext4_xattr_inode_set(handle_t *handle, struct inode *inode, unsigned long *ea_ino,
+ const void *value, size_t value_len)
+{
+ struct inode *ea_inode = NULL;
+ int name_index;
+ int in_inode;
};
-
+
struct ext4_xattr_search {
-@@ -539,15 +803,23 @@
+@@ -539,15 +806,23 @@ struct ext4_xattr_search {
};
-
+
static int
-ext4_xattr_set_entry(struct ext4_xattr_info *i, struct ext4_xattr_search *s)
+ext4_xattr_set_entry(struct ext4_xattr_info *i, struct ext4_xattr_search *s,
+ (EXT4_XATTR_SIZE(i->value_len) >
+ EXT4_XATTR_MIN_LARGE_EA_SIZE(inode->i_sb->s_blocksize)))
+ in_inode = 1;
-
+
/* Compute min_offs and last. */
last = s->first;
for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) {
- if (!last->e_value_block && last->e_value_size) {
-+ if (last->e_value_inum == 0 && last->e_value_size > 0) {
++ if (!last->e_value_inum && last->e_value_size) {
size_t offs = le16_to_cpu(last->e_value_offs);
if (offs < min_offs)
min_offs = offs;
-@@ -555,16 +827,21 @@
+@@ -555,16 +830,21 @@ ext4_xattr_set_entry(struct ext4_xattr_i
}
free = min_offs - ((void *)last - s->base) - sizeof(__u32);
if (!s->not_found) {
- if (!s->here->e_value_block && s->here->e_value_size) {
-+ if (!in_inode && s->here->e_value_inum == 0 &&
-+ s->here->e_value_size > 0) {
++ if (!in_inode &&
++ !s->here->e_value_inum && s->here->e_value_size) {
size_t size = le32_to_cpu(s->here->e_value_size);
free += EXT4_XATTR_SIZE(size);
}
+ free < EXT4_XATTR_LEN(name_len) + value_len)
return -ENOSPC;
}
-
-@@ -578,7 +855,8 @@
+
+@@ -578,7 +858,8 @@ 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 {
- if (!s->here->e_value_block && s->here->e_value_size) {
-+ if (s->here->e_value_offs > 0 && s->here->e_value_inum == 0 &&
-+ s->here->e_value_size > 0) {
++ if (!s->here->e_value_inum && s->here->e_value_size &&
++ s->here->e_value_offs > 0) {
void *first_val = s->base + min_offs;
size_t offs = le16_to_cpu(s->here->e_value_offs);
void *val = s->base + offs;
-@@ -607,13 +885,17 @@
+@@ -607,13 +888,18 @@ 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);
- if (!last->e_value_block &&
-- last->e_value_size && o < offs)
-+ if (last->e_value_size > 0 && o < offs)
++ if (!last->e_value_inum &&
+ last->e_value_size && o < offs)
last->e_value_offs =
cpu_to_le16(o + size);
last = EXT4_XATTR_NEXT(last);
}
}
-+ if (s->here->e_value_inum != 0) {
++ if (s->here->e_value_inum) {
+ ext4_xattr_inode_unlink(inode,
+ le32_to_cpu(s->here->e_value_inum));
+ s->here->e_value_inum = 0;
if (!i->value) {
/* Remove the old name. */
size_t size = EXT4_XATTR_LEN(name_len);
-@@ -627,10 +909,17 @@
+@@ -627,10 +912,17 @@ 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);
- if (i->value_len) {
+ if (in_inode) {
-+ int ea_ino = le32_to_cpu(s->here->e_value_inum);
++ unsigned long ea_ino = le32_to_cpu(s->here->e_value_inum);
+ ext4_xattr_inode_set(handle, inode, &ea_ino, i->value,
+ i->value_len);
+ s->here->e_value_inum = cpu_to_le32(ea_ino);
memset(val + size - EXT4_XATTR_PAD, 0,
EXT4_XATTR_PAD); /* Clear the pad bytes. */
memcpy(val, i->value, i->value_len);
-@@ -675,7 +964,7 @@
+@@ -675,7 +967,7 @@ 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,
if (error && error != -ENODATA)
goto cleanup;
bs->s.not_found = error;
-@@ -699,8 +988,6 @@
-
+@@ -699,8 +991,6 @@ ext4_xattr_block_set(handle_t *handle, s
+
#define header(x) ((struct ext4_xattr_header *)(x))
-
+
- if (i->value && i->value_len > sb->s_blocksize)
- return -ENOSPC;
if (s->base) {
ce = mb_cache_entry_get(ext4_xattr_cache, bs->bh->b_bdev,
bs->bh->b_blocknr);
-@@ -715,7 +1002,7 @@
+@@ -715,7 +1005,7 @@ ext4_xattr_block_set(handle_t *handle, s
ce = NULL;
}
ea_bdebug(bs->bh, "modifying in-place");
if (!error) {
if (!IS_LAST_ENTRY(s->first))
ext4_xattr_rehash(header(s->base),
-@@ -767,7 +1054,7 @@
+@@ -767,7 +1057,7 @@ ext4_xattr_block_set(handle_t *handle, s
s->end = s->base + sb->s_blocksize;
}
-
+
- error = ext4_xattr_set_entry(i, s);
+ error = ext4_xattr_set_entry(i, s, handle, inode);
if (error == -EIO)
goto bad_block;
if (error)
-@@ -918,7 +1205,7 @@
+@@ -918,7 +1208,7 @@ ext4_xattr_ibody_find(struct inode *inod
/* Find the named attribute. */
error = ext4_xattr_find_entry(&is->s.here, i->name_index,
i->name, is->s.end -
if (error && error != -ENODATA)
return error;
is->s.not_found = error;
-@@ -937,7 +1224,7 @@
-
+@@ -937,7 +1227,7 @@ ext4_xattr_ibody_set(handle_t *handle, s
+
if (EXT4_I(inode)->i_extra_isize == 0)
return -ENOSPC;
- error = ext4_xattr_set_entry(i, s);
if (error)
return error;
header = IHDR(inode, ext4_raw_inode(&is->iloc));
-@@ -973,7 +1260,7 @@
+@@ -973,7 +1263,7 @@ ext4_xattr_set_handle(handle_t *handle,
.name = name,
.value = value,
.value_len = value_len,
};
struct ext4_xattr_ibody_find is = {
.s = { .not_found = -ENODATA, },
-@@ -1042,6 +1329,15 @@
+@@ -1042,6 +1332,15 @@ ext4_xattr_set_handle(handle_t *handle,
goto cleanup;
}
error = ext4_xattr_block_set(handle, inode, &i, &bs);
if (error)
goto cleanup;
if (!is.s.not_found) {
-@@ -1089,10 +1385,25 @@
+@@ -1088,10 +1387,25 @@ ext4_xattr_set(struct inode *inode, int
const void *value, size_t value_len, int flags)
{
handle_t *handle;
+ struct super_block *sb = inode->i_sb;
+ int buffer_credits;
int error, retries = 0;
-
+
+ buffer_credits = EXT4_DATA_TRANS_BLOCKS(sb);
+ if ((value_len >= EXT4_XATTR_MIN_LARGE_EA_SIZE(sb->s_blocksize)) &&
+ EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_EA_INODE)) {
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
} else {
-@@ -1102,7 +1413,7 @@
+@@ -1101,7 +1415,7 @@ retry:
value, value_len, flags);
error2 = ext4_journal_stop(handle);
if (error == -ENOSPC &&
goto retry;
if (error == 0)
error = error2;
-@@ -1124,7 +1435,7 @@
-
+@@ -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)) {
- if (!last->e_value_block && last->e_value_size) {
-+ if (last->e_value_inum == 0 && last->e_value_size > 0) {
++ if (!last->e_value_inum && last->e_value_size) {
new_offs = le16_to_cpu(last->e_value_offs) +
value_offs_shift;
BUG_ON(new_offs + le32_to_cpu(last->e_value_size)
-@@ -1364,15 +1675,41 @@
+@@ -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.
++ * If @lea_ino_array is new or full it will be grown and the old
++ * contents copied over.
++ */
++static int
++ext4_expand_ino_array(struct ext4_xattr_ino_array **lea_ino_array, __u32 ino)
++{
++ if (*lea_ino_array == NULL) {
++ /*
++ * Start with 15 inodes, so it fits into a powr-of-two size.
++ * If *lea_ino_array is NULL, this is essentially offsetof()
++ */
++ (*lea_ino_array) =
++ kmalloc(offsetof(struct ext4_xattr_ino_array,
++ xia_inodes[EIA_MASK]),
++ GFP_NOFS);
++ if (*lea_ino_array == NULL)
++ return -ENOMEM;
++ (*lea_ino_array)->xia_count = 0;
++ } else if (((*lea_ino_array)->xia_count & EIA_MASK) == EIA_MASK) {
++ /* expand the array once all 15 + n * 16 slots are full */
++ struct ext4_xattr_ino_array *new_array = NULL;
++ int count = (*lea_ino_array)->xia_count;
++
++ /* if new_array is NULL, this is essentially offsetof() */
++ new_array = kmalloc(
++ offsetof(struct ext4_xattr_ino_array,
++ xia_inodes[count + EIA_INCR]),
++ GFP_NOFS);
++ if (new_array == NULL)
++ return -ENOMEM;
++ memcpy(new_array, *lea_ino_array,
++ offsetof(struct ext4_xattr_ino_array,
++ xia_inodes[count]));
++ kfree(*lea_ino_array);
++ *lea_ino_array = new_array;
++ }
++ (*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()
*
+ * xattr block and all xattr inodes. They are checked by ext4_xattr_inode_iget()
+ * to ensure they belong to the parent inode and were not deleted already.
*/
- void
- ext4_xattr_delete_inode(handle_t *handle, struct inode *inode)
+-void
+-ext4_xattr_delete_inode(handle_t *handle, struct inode *inode)
++int
++ext4_xattr_delete_inode(handle_t *handle, struct inode *inode,
++ struct ext4_xattr_ino_array **lea_ino_array)
{
struct buffer_head *bh = NULL;
+ struct ext4_xattr_ibody_header *header;
+ struct ext4_inode *raw_inode;
+ struct ext4_iloc iloc;
+ struct ext4_xattr_entry *entry;
-+ int error;
-+
++ 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);
-+ for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {
-+ if (entry->e_value_inum != 0) {
-+ ext4_xattr_inode_unlink(inode,
-+ le32_to_cpu(entry->e_value_inum));
-+ entry->e_value_inum = 0;
++ for (entry = IFIRST(header); !IS_LAST_ENTRY(entry);
++ entry = EXT4_XATTR_NEXT(entry)) {
++ if (!entry->e_value_inum)
++ continue;
++ if (ext4_expand_ino_array(lea_ino_array,
++ entry->e_value_inum) != 0) {
++ brelse(iloc.bh);
++ goto cleanup;
+ }
++ 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);
-@@ -1387,6 +1724,16 @@
+ 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;
}
+
-+ entry = BFIRST(bh);
-+ for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {
-+ if (entry->e_value_inum != 0) {
-+ ext4_xattr_inode_unlink(inode,
-+ le32_to_cpu(entry->e_value_inum));
-+ entry->e_value_inum = 0;
++ for (entry = BFIRST(bh); !IS_LAST_ENTRY(entry);
++ entry = EXT4_XATTR_NEXT(entry)) {
++ if (!entry->e_value_inum)
++ continue;
++ if (ext4_expand_ino_array(lea_ino_array,
++ entry->e_value_inum) != 0)
++ goto cleanup;
++ entry->e_value_inum = 0;
++ }
++
++ /* adding xattr inode to orphan list */
++ 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;
+ }
+ }
+
ext4_xattr_release_block(handle, inode, bh);
EXT4_I(inode)->i_file_acl = 0;
-
-@@ -1461,10 +1808,9 @@
+
+ cleanup:
+ brelse(bh);
++
++ return error;
++}
++
++void
++ext4_xattr_inode_array_free(struct inode *inode,
++ struct ext4_xattr_ino_array *lea_ino_array)
++{
++ struct inode *ea_inode = NULL;
++ int idx = 0;
++ int err;
++
++ if (lea_ino_array == NULL)
++ return;
++
++ for (; idx < lea_ino_array->xia_count; ++idx) {
++ ea_inode = ext4_xattr_inode_iget(inode,
++ lea_ino_array->xia_inodes[idx], &err);
++ if (err)
++ continue;
++ /* 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);
+ }
+
+ /*
+@@ -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 ||
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 +1894,7 @@
+@@ -1547,7 +2031,7 @@ static inline void ext4_xattr_hash_entry
*name++;
}
-
+
- if (entry->e_value_block == 0 && entry->e_value_size != 0) {
-+ if (entry->e_value_inum == 0 && entry->e_value_size != 0) {
++ if (!entry->e_value_inum && entry->e_value_size) {
__le32 *value = (__le32 *)((char *)header +
le16_to_cpu(entry->e_value_offs));
for (n = (le32_to_cpu(entry->e_value_size) +
-diff -ur linux-stage.orig/fs/ext4/xattr.h linux-stage/fs/ext4/xattr.h
---- linux-stage.orig/fs/ext4/xattr.h 2012-12-31 15:56:25.000000000 -0500
-+++ linux-stage/fs/ext4/xattr.h 2012-12-31 15:56:48.000000000 -0500
-@@ -38,7 +38,7 @@
+Index: linux-stage/fs/ext4/xattr.h
+===================================================================
+--- linux-stage.orig/fs/ext4/xattr.h
++++ linux-stage/fs/ext4/xattr.h
+@@ -38,7 +38,7 @@ struct ext4_xattr_entry {
__u8 e_name_len; /* length of name */
__u8 e_name_index; /* attribute name index */
__le16 e_value_offs; /* offset in disk block of value */
__le32 e_value_size; /* size of attribute value */
__le32 e_hash; /* hash value of name and value */
char e_name[0]; /* attribute name */
-@@ -63,6 +63,15 @@
+@@ -63,6 +63,26 @@ struct ext4_xattr_entry {
EXT4_I(inode)->i_extra_isize))
#define IFIRST(hdr) ((struct ext4_xattr_entry *)((hdr)+1))
-
-+#define i_xattr_inode_parent i_mtime.tv_sec
+
++/*
++ * Link EA inode back to parent one using i_mtime field.
++ * Extra integer type conversion added to ignore higher
++ * bits in i_mtime.tv_sec which might be set by ext4_get()
++ */
++#define EXT4_XATTR_INODE_SET_PARENT(inode, inum) \
++do { \
++ (inode)->i_mtime.tv_sec = inum; \
++} while(0)
++
++#define EXT4_XATTR_INODE_GET_PARENT(inode) \
++((__u32)(inode)->i_mtime.tv_sec)
+
+/*
+ * The minimum size of EA value when you start storing it in an external inode
+ ((b) - EXT4_XATTR_LEN(3) - sizeof(struct ext4_xattr_header) - 4)
+
# ifdef CONFIG_EXT4_FS_XATTR
-
+
extern const struct xattr_handler ext4_xattr_user_handler;
+@@ -77,7 +86,13 @@ extern int ext4_xattr_get(struct inode *
+ extern int ext4_xattr_set(struct inode *, int, const char *, const void *, size_t, int);
+ extern int ext4_xattr_set_handle(handle_t *, struct inode *, int, const char *, const void *, size_t, int);
+
+-extern void ext4_xattr_delete_inode(handle_t *, struct inode *);
++extern struct inode *ext4_xattr_inode_iget(struct inode *parent, unsigned long ea_ino,
++ int *err);
++extern int ext4_xattr_inode_unlink(struct inode *inode, unsigned long ea_ino);
++extern int ext4_xattr_delete_inode(handle_t *handle, struct inode *inode,
++ struct ext4_xattr_ino_array **array);
++extern void ext4_xattr_inode_array_free(struct inode *inode,
++ struct ext4_xattr_ino_array *array);
+ extern void ext4_xattr_put_super(struct super_block *);
+
+ extern int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
+@@ -111,9 +126,11 @@ ext4_xattr_set_handle(handle_t *handle,
+ return -EOPNOTSUPP;
+ }
+
+-static inline void
+-ext4_xattr_delete_inode(handle_t *handle, struct inode *inode)
++inline int
++ext4_xattr_delete_inode(handle_t *handle, struct inode *inode,
++ struct ext4_xattr_ino_array *array)
+ {
++ return -EOPNOTSUPP;
+ }
+
+ static inline void
+Index: linux-stage/fs/ext4/ialloc.c
+===================================================================
+--- linux-stage.orig/fs/ext4/ialloc.c
++++ linux-stage/fs/ext4/ialloc.c
+@@ -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);
+- ext4_xattr_delete_inode(handle, inode);
+ dquot_free_inode(inode);
+ dquot_drop(inode);
+