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ubifs: remove broken lazytime support 

[ Upstream commit ecf84096a5 ]

When "ubifs: introduce UBIFS_ATIME_SUPPORT to ubifs" introduced atime
support to ubifs, it also added lazytime support.  As far as I can tell
the lazytime support is terminally broken, as it causes
mark_inode_dirty_sync to be called from __writeback_single_inode, which
will then trigger the locking assert in ubifs_dirty_inode.  Just remove
the broken lazytime support for now, it can be added back later,
especially as some infrastructure changes should make that easier soon.

Fixes: 8c1c5f2638 ("ubifs: introduce UBIFS_ATIME_SUPPORT to ubifs")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Christoph Hellwig 2020-04-09 13:33:05 +02:00 committed by Greg Kroah-Hartman
parent ac6f94d3be
commit 9f885f1750
1 changed files with 1 additions and 5 deletions
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6
fs/ubifs/file.c
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@ -1375,7 +1375,6 @@ int ubifs_update_time(struct inode *inode, struct timespec64 *time,
struct ubifs_info *c = inode->i_sb->s_fs_info;
struct ubifs_budget_req req = { .dirtied_ino = 1,
.dirtied_ino_d = ALIGN(ui->data_len, 8) };
int iflags = I_DIRTY_TIME;
int err, release;
if (!IS_ENABLED(CONFIG_UBIFS_ATIME_SUPPORT))
@ -1393,11 +1392,8 @@ int ubifs_update_time(struct inode *inode, struct timespec64 *time,
if (flags & S_MTIME)
inode->i_mtime = *time;
if (!(inode->i_sb->s_flags & SB_LAZYTIME))
iflags |= I_DIRTY_SYNC;
release = ui->dirty;
__mark_inode_dirty(inode, iflags);
__mark_inode_dirty(inode, I_DIRTY_SYNC);
mutex_unlock(&ui->ui_mutex);
if (release)
ubifs_release_budget(c, &req);