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commit 8ae757efd32bd4962fa16366875416a55307f7c4
parent aa0c38cf39de73bf7360a3da8f1707601261e518
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Tue, 12 Feb 2019 09:57:45 -0800

Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fix from Ted Ts'o:
 "Revert a commit which landed in v5.0-rc1 since it makes fsync in ext4
  nojournal mode unsafe"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  Revert "ext4: use ext4_write_inode() when fsyncing w/o a journal"

Diffstat:
Mfs/ext4/fsync.c | 13++++---------
1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c @@ -116,16 +116,8 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync) goto out; } - ret = file_write_and_wait_range(file, start, end); - if (ret) - return ret; - if (!journal) { - struct writeback_control wbc = { - .sync_mode = WB_SYNC_ALL - }; - - ret = ext4_write_inode(inode, &wbc); + ret = __generic_file_fsync(file, start, end, datasync); if (!ret) ret = ext4_sync_parent(inode); if (test_opt(inode->i_sb, BARRIER)) @@ -133,6 +125,9 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync) goto out; } + ret = file_write_and_wait_range(file, start, end); + if (ret) + return ret; /* * data=writeback,ordered: * The caller's filemap_fdatawrite()/wait will sync the data.