inode->i_size = 0;
err = ext4_mark_inode_dirty(handle, inode);
if (err) {
+@@ -269,10 +296,10 @@ 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);
@@ -306,8 +333,12 @@ void ext4_evict_inode(struct inode *inod
ext4_clear_inode(inode);
else
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)))
{
struct ext4_xattr_entry *entry;
size_t name_len;
-@@ -265,11 +273,103 @@ ext4_xattr_find_entry(struct ext4_xattr_
+@@ -265,11 +273,104 @@ ext4_xattr_find_entry(struct ext4_xattr_
break;
}
*pentry = entry;
+ 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;
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);
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);
{
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;
-@@ -611,16 +728,174 @@ static size_t ext4_xattr_free_space(stru
+@@ -611,16 +728,198 @@ static size_t ext4_xattr_free_space(stru
return (*min_offs - ((void *)last - base) - sizeof(__u32));
}
+ return ret;
+}
+
++static void ext4_xattr_inode_set_ref(struct inode *ea_inode, __u64 ref_count)
++{
++ ea_inode->i_ctime.tv_sec = (__u32)(ref_count >> 32);
++ ea_inode->i_version = (__u32)ref_count;
++}
++
++static void ext4_xattr_inode_set_hash(struct inode *ea_inode, __u32 hash)
++{
++ ea_inode->i_atime.tv_sec = hash;
++}
++
+/*
+ * Create an inode to store the value of a large EA.
+ */
+static struct inode *
-+ext4_xattr_inode_create(handle_t *handle, struct inode *inode)
++ext4_xattr_inode_create(handle_t *handle, struct inode *inode, __u32 hash)
+{
+ struct inode *ea_inode = NULL;
+
+ * 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);
++
++ ext4_xattr_inode_set_ref(ea_inode, 1);
++ ext4_xattr_inode_set_hash(ea_inode, hash);
+ }
+
+ return ea_inode;
+ * Unlink the inode storing the value of the EA.
+ */
+int
-+ext4_xattr_inode_unlink(struct inode *inode, int ea_ino)
++ext4_xattr_inode_unlink(struct inode *inode, unsigned long ea_ino)
+{
+ struct inode *ea_inode = NULL;
+ int err;
+ return 0;
+}
+
++static __u32
++ext4_xattr_inode_hash(struct ext4_sb_info *sbi, const void *buffer, size_t size)
++{
++ if (ext4_has_metadata_csum(sbi->s_sb))
++ return ext4_chksum(sbi, sbi->s_csum_seed, buffer, size);
++ return 0;
++}
++
+/*
+ * 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;
++ __u32 hash;
+ int err;
+
+ /* Create an inode for the EA value */
-+ ea_inode = ext4_xattr_inode_create(handle, inode);
++ hash = ext4_xattr_inode_hash(EXT4_SB(inode->i_sb), value, value_len);
++ ea_inode = ext4_xattr_inode_create(handle, inode, hash);
+ if (IS_ERR(ea_inode))
+ return -1;
+
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;
-@@ -628,16 +903,21 @@ ext4_xattr_set_entry(struct ext4_xattr_i
+@@ -628,16 +927,21 @@ 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);
}
return -ENOSPC;
}
-@@ -651,7 +931,8 @@ ext4_xattr_set_entry(struct ext4_xattr_i
+@@ -651,7 +955,8 @@ 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;
-@@ -685,13 +966,17 @@ ext4_xattr_set_entry(struct ext4_xattr_i
+@@ -685,13 +990,18 @@ 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);
-@@ -705,10 +990,17 @@ ext4_xattr_set_entry(struct ext4_xattr_i
+@@ -705,10 +1014,17 @@ 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);
if (i->value == EXT4_ZERO_XATTR_VALUE) {
memset(val, 0, size);
} else {
-@@ -758,7 +1050,7 @@ ext4_xattr_block_find(struct inode *inod
+@@ -758,7 +1074,7 @@ 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;
-@@ -782,8 +1074,6 @@ ext4_xattr_block_set(handle_t *handle, s
+@@ -782,8 +1098,6 @@ ext4_xattr_block_set(handle_t *handle, s
#define header(x) ((struct ext4_xattr_header *)(x))
if (s->base) {
ce = mb_cache_entry_get(ext4_xattr_cache, bs->bh->b_bdev,
bs->bh->b_blocknr);
-@@ -799,7 +1089,7 @@ ext4_xattr_block_set(handle_t *handle, s
+@@ -799,7 +1113,7 @@ 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),
-@@ -850,7 +1140,7 @@ ext4_xattr_block_set(handle_t *handle, s
+@@ -850,7 +1164,7 @@ ext4_xattr_block_set(handle_t *handle, s
s->end = s->base + sb->s_blocksize;
}
if (error == -EIO)
goto bad_block;
if (error)
-@@ -1000,7 +1290,7 @@ int ext4_xattr_ibody_find(struct inode *
+@@ -1000,7 +1314,7 @@ 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 -
if (error && error != -ENODATA)
return error;
is->s.not_found = error;
-@@ -1018,7 +1308,7 @@ int ext4_xattr_ibody_inline_set(handle_t
+@@ -1018,7 +1332,7 @@ int ext4_xattr_ibody_inline_set(handle_t
if (EXT4_I(inode)->i_extra_isize == 0)
return -ENOSPC;
if (error) {
if (error == -ENOSPC &&
ext4_has_inline_data(inode)) {
-@@ -1030,7 +1320,7 @@ int ext4_xattr_ibody_inline_set(handle_t
+@@ -1030,7 +1344,7 @@ int ext4_xattr_ibody_inline_set(handle_t
error = ext4_xattr_ibody_find(inode, i, is);
if (error)
return error;
}
if (error)
return error;
-@@ -1056,7 +1346,7 @@ static int ext4_xattr_ibody_set(handle_t
+@@ -1056,7 +1370,7 @@ static int ext4_xattr_ibody_set(handle_t
if (EXT4_I(inode)->i_extra_isize == 0)
return -ENOSPC;
if (error)
return error;
header = IHDR(inode, ext4_raw_inode(&is->iloc));
-@@ -1092,7 +1382,7 @@ ext4_xattr_set_handle(handle_t *handle,
+@@ -1092,7 +1406,7 @@ 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, },
-@@ -1157,6 +1447,15 @@ ext4_xattr_set_handle(handle_t *handle,
+@@ -1157,6 +1471,15 @@ 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) {
-@@ -1203,9 +1502,22 @@ ext4_xattr_set(struct inode *inode, int
+@@ -1203,9 +1526,22 @@ ext4_xattr_set(struct inode *inode, int
const void *value, size_t value_len, int flags)
{
handle_t *handle;
retry:
handle = ext4_journal_start(inode, EXT4_HT_XATTR, credits);
if (IS_ERR(handle)) {
-@@ -1217,7 +1529,7 @@ retry:
+@@ -1217,7 +1553,7 @@ retry:
value, value_len, flags);
error2 = ext4_journal_stop(handle);
if (error == -ENOSPC &&
goto retry;
if (error == 0)
error = error2;
-@@ -1239,7 +1551,7 @@ static void ext4_xattr_shift_entries(str
+@@ -1239,7 +1575,7 @@ 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)
-@@ -1477,21 +1789,135 @@ cleanup:
+@@ -1477,21 +1813,135 @@ 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)
++ 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) {
bh = sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl);
if (!bh) {
EXT4_ERROR_INODE(inode, "block %llu read error",
-@@ -1504,11 +1930,69 @@ ext4_xattr_delete_inode(handle_t *handle
+@@ -1504,11 +1954,69 @@ 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)
++ 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)
}
/*
-@@ -1578,10 +2062,9 @@ ext4_xattr_cmp(struct ext4_xattr_header
+@@ -1578,10 +2086,9 @@ 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)))
-@@ -1665,7 +2148,7 @@ static inline void ext4_xattr_hash_entry
+@@ -1665,7 +2172,7 @@ 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) +
__le32 e_value_size; /* size of attribute value */
__le32 e_hash; /* hash value of name and value */
char e_name[0]; /* attribute name */
-@@ -67,6 +67,15 @@ struct ext4_xattr_entry {
+@@ -67,6 +67,26 @@ 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
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, int ea_ino,
++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, int ea_ino);
++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,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff