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f2fs fix for 6.12-rc4

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This includes an urgent fix to resolve DIO read performance regression caused by
 0cac51185e ("f2fs: fix to avoid racing in between read and OPU dio write").
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Merge tag 'f2fs-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs fix from Jaegeuk Kim:
 "An urgent fix to resolve DIO read performance regression caused by
  'f2fs: fix to avoid racing in between read and OPU dio write'"

* tag 'f2fs-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
  f2fs: allow parallel DIO reads
This commit is contained in:
Linus Torvalds 2024-10-14 11:19:19 -07:00
commit eca631b8fe
1 changed files with 2 additions and 1 deletions
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3
fs/f2fs/file.c
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@ -4647,7 +4647,8 @@ static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
iov_iter_count(to), READ);
/* In LFS mode, if there is inflight dio, wait for its completion */
if (f2fs_lfs_mode(F2FS_I_SB(inode)))
if (f2fs_lfs_mode(F2FS_I_SB(inode)) &&
get_pages(F2FS_I_SB(inode), F2FS_DIO_WRITE))
inode_dio_wait(inode);
if (f2fs_should_use_dio(inode, iocb, to)) {