diff options
| author | Eric Biggers <ebiggers@google.com> | 2021-01-12 11:02:47 -0800 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2021-01-13 17:26:33 +0100 |
| commit | e2728c5621fd9c68c65a6647875a1d1c67b9f257 (patch) | |
| tree | 22924de355cb209301133ffa057e6c8302b5b266 | |
| parent | ff4136e64d129c4b617331d6c84a3e1781dda70d (diff) | |
| download | linux-next-e2728c5621fd9c68c65a6647875a1d1c67b9f257.tar.gz | |
fs: don't call ->dirty_inode for lazytime timestamp updates
There is no need to call ->dirty_inode for lazytime timestamp updates
(i.e. for __mark_inode_dirty(I_DIRTY_TIME)), since by the definition of
lazytime, filesystems must ignore these updates. Filesystems only need
to care about the updated timestamps when they expire.
Therefore, only call ->dirty_inode when I_DIRTY_INODE is set.
Based on a patch from Christoph Hellwig:
https://lore.kernel.org/r/20200325122825.1086872-4-hch@lst.de
Link: https://lore.kernel.org/r/20210112190253.64307-6-ebiggers@kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
| -rw-r--r-- | fs/ext4/inode.c | 12 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 3 | ||||
| -rw-r--r-- | fs/fs-writeback.c | 6 | ||||
| -rw-r--r-- | fs/gfs2/super.c | 2 |
4 files changed, 4 insertions, 19 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 27946882d4ce..4cc6c7834312 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -5933,26 +5933,16 @@ out: * If the inode is marked synchronous, we don't honour that here - doing * so would cause a commit on atime updates, which we don't bother doing. * We handle synchronous inodes at the highest possible level. - * - * If only the I_DIRTY_TIME flag is set, we can skip everything. If - * I_DIRTY_TIME and I_DIRTY_SYNC is set, the only inode fields we need - * to copy into the on-disk inode structure are the timestamp files. */ void ext4_dirty_inode(struct inode *inode, int flags) { handle_t *handle; - if (flags == I_DIRTY_TIME) - return; handle = ext4_journal_start(inode, EXT4_HT_INODE, 2); if (IS_ERR(handle)) - goto out; - + return; ext4_mark_inode_dirty(handle, inode); - ext4_journal_stop(handle); -out: - return; } int ext4_change_inode_journal_flag(struct inode *inode, int val) diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index b4a07fe62d1a..cc98dc49f4a2 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1196,9 +1196,6 @@ static void f2fs_dirty_inode(struct inode *inode, int flags) inode->i_ino == F2FS_META_INO(sbi)) return; - if (flags == I_DIRTY_TIME) - return; - if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) clear_inode_flag(inode, FI_AUTO_RECOVER); diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index c41cb887eb7d..b7616bbd5533 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -2255,16 +2255,16 @@ void __mark_inode_dirty(struct inode *inode, int flags) * Don't do this for I_DIRTY_PAGES - that doesn't actually * dirty the inode itself */ - if (flags & (I_DIRTY_INODE | I_DIRTY_TIME)) { + if (flags & I_DIRTY_INODE) { trace_writeback_dirty_inode_start(inode, flags); if (sb->s_op->dirty_inode) sb->s_op->dirty_inode(inode, flags); trace_writeback_dirty_inode(inode, flags); - } - if (flags & I_DIRTY_INODE) + flags &= ~I_DIRTY_TIME; + } dirtytime = flags & I_DIRTY_TIME; /* diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index 2f56acc41c04..042b94288ff1 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -562,8 +562,6 @@ static void gfs2_dirty_inode(struct inode *inode, int flags) int need_endtrans = 0; int ret; - if (!(flags & I_DIRTY_INODE)) - return; if (unlikely(gfs2_withdrawn(sdp))) return; if (!gfs2_glock_is_locked_by_me(ip->i_gl)) { |