diff options
| author | Jan Kara <jack@suse.cz> | 2019-11-05 19:44:29 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2019-11-06 00:00:49 +0300 |
| commit | 83448bdfb59731c2f54784ed3f4a93ff95be6e7e (patch) | |
| tree | 1565589f99ab6ca22e94e2167c21b94934ab8ce3 /fs/ext4/xattr.c | |
| parent | d090707edab59cb07047d6d7e138ffcc3bdc42be (diff) | |
| download | linux-83448bdfb59731c2f54784ed3f4a93ff95be6e7e.tar.xz | |
ext4: Reserve revoke credits for freed blocks
So far we have reserved only relatively high fixed amount of revoke
credits for each transaction. We over-reserved by large amount for most
cases but when freeing large directories or files with data journalling,
the fixed amount is not enough. In fact the worst case estimate is
inconveniently large (maximum extent size) for freeing of one extent.
We fix this by doing proper estimate of the amount of blocks that need
to be revoked when removing blocks from the inode due to truncate or
hole punching and otherwise reserve just a small amount of revoke
credits for each transaction to accommodate freeing of xattrs block or
so.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20191105164437.32602-23-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/xattr.c')
| -rw-r--r-- | fs/ext4/xattr.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 48a9dbd27f43..8966a5439a22 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -1155,6 +1155,7 @@ ext4_xattr_inode_dec_ref_all(handle_t *handle, struct inode *parent, } err = ext4_journal_ensure_credits_fn(handle, credits, credits, + ext4_free_metadata_revoke_credits(parent->i_sb, 1), ext4_xattr_restart_fn(handle, parent, bh, block_csum, dirty)); if (err < 0) { @@ -2841,7 +2842,8 @@ int ext4_xattr_delete_inode(handle_t *handle, struct inode *inode, struct inode *ea_inode; int error; - error = ext4_journal_ensure_credits(handle, extra_credits); + error = ext4_journal_ensure_credits(handle, extra_credits, + ext4_free_metadata_revoke_credits(inode->i_sb, 1)); if (error < 0) { EXT4_ERROR_INODE(inode, "ensure credits (error %d)", error); goto cleanup; |