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| author |   Jan Kara <jack@suse.cz> | 2011-04-04 15:33:39 -0400 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2011-04-04 15:33:39 -0400 |
| commit | 21f976975cbecbdaf23ceeacc1cab2b1c05a028e (patch) | |
| tree | 3040b533bf50d58e23c3c207001d89b29846df37 /fs/ext4/ext4_jbd2.h | |
| parent | jbd2: move bdget out of critical section (diff) | |
| download | wireguard-linux-21f976975cbecbdaf23ceeacc1cab2b1c05a028e.tar.xz wireguard-linux-21f976975cbecbdaf23ceeacc1cab2b1c05a028e.zip | |
ext4: remove unnecessary [cm]time update of quota file
It is not necessary to update [cm]time of quota file on each quota
file write and it wastes journal space and IO throughput with inode
writes. So just remove the updating from ext4_quota_write() and only
update times when quotas are being turned off. Userspace cannot get
anything reliable from quota files while they are used by the kernel
anyway.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4_jbd2.h')
| -rw-r--r-- | fs/ext4/ext4_jbd2.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h index e25e99bf7ee1..d0f53538a57f 100644 --- a/fs/ext4/ext4_jbd2.h +++ b/fs/ext4/ext4_jbd2.h @@ -86,8 +86,8 @@ #ifdef CONFIG_QUOTA /* Amount of blocks needed for quota update - we know that the structure was - * allocated so we need to update only inode+data */ -#define EXT4_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 2 : 0) + * allocated so we need to update only data block */ +#define EXT4_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 1 : 0) /* Amount of blocks needed for quota insert/delete - we do some block writes * but inode, sb and group updates are done only once */ #define EXT4_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\ |