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| author | Tahsin Erdogan <tahsin@google.com> | 2017-06-21 22:28:40 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2017-06-21 22:28:40 -0400 |
| commit | c1a5d5f6ab21eb7e6ff8cb99489d9001cf2a2850 (patch) | |
| tree | fdbc1f98ca505dc3b85bbef2a0aefb0b764c56d8 /fs/ext4/acl.c | |
| parent | 65d3000520c50f3c160403a210a7504d789eafca (diff) | |
| download | linux-c1a5d5f6ab21eb7e6ff8cb99489d9001cf2a2850.tar.gz linux-c1a5d5f6ab21eb7e6ff8cb99489d9001cf2a2850.tar.bz2 linux-c1a5d5f6ab21eb7e6ff8cb99489d9001cf2a2850.zip | |
ext4: improve journal credit handling in set xattr paths
Both ext4_set_acl() and ext4_set_context() need to be made aware of
ea_inode feature when it comes to credits calculation.
Also add a sufficient credits check in ext4_xattr_set_handle() right
after xattr write lock is grabbed. Original credits calculation is done
outside the lock so there is a possiblity that the initially calculated
credits are not sufficient anymore.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/acl.c')
| -rw-r--r-- | fs/ext4/acl.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c index 3ec0e46de95f..74f7ac539e00 100644 --- a/fs/ext4/acl.c +++ b/fs/ext4/acl.c @@ -231,14 +231,15 @@ int ext4_set_acl(struct inode *inode, struct posix_acl *acl, int type) { handle_t *handle; - int error, retries = 0; + int error, credits, retries = 0; + size_t acl_size = acl ? ext4_acl_size(acl->a_count) : 0; error = dquot_initialize(inode); if (error) return error; retry: - handle = ext4_journal_start(inode, EXT4_HT_XATTR, - ext4_jbd2_credits_xattr(inode)); + credits = ext4_xattr_set_credits(inode, acl_size); + handle = ext4_journal_start(inode, EXT4_HT_XATTR, credits); if (IS_ERR(handle)) return PTR_ERR(handle); |