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Revert a commit which landed in v5.0-rc1 since it makes fsync in ext4 

nojournal mode unsafe.
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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"
This commit is contained in:
Linus Torvalds 2019-02-12 09:57:45 -08:00
parent aa0c38cf39 8fdd60f2ae
commit 8ae757efd3
1 changed files with 4 additions and 9 deletions
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13
fs/ext4/fsync.c
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@ -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.