diff options
| author |   Eric Biggers <ebiggers@google.com> | 2022-08-26 23:58:49 -0700 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2022-09-11 19:47:12 -0500 |
| commit | bd3673293175288d71bce48e46e58e3bcc19829e (patch) | |
| tree | 389dca6f6a028454ef5b36be38b7601745a7eb91 | |
| parent | f2fs: move f2fs_force_buffered_io() into file.c (diff) | |
| download | linux-dev-bd3673293175288d71bce48e46e58e3bcc19829e.tar.xz linux-dev-bd3673293175288d71bce48e46e58e3bcc19829e.zip | |
f2fs: simplify f2fs_force_buffered_io()
f2fs only allows direct I/O that is aligned to the filesystem block
size. Given that fact, simplify f2fs_force_buffered_io() by removing
the redundant call to block_unaligned_IO().
This makes it easier to reuse this code for STATX_DIOALIGN.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Jaegeuk Kim <jaegeuk@kernel.org>
Link: https://lore.kernel.org/r/20220827065851.135710-7-ebiggers@kernel.org
| -rw-r--r-- | fs/f2fs/file.c | 27 |
1 files changed, 5 insertions, 22 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 8a9455bf956f..8e11311db210 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -808,22 +808,9 @@ int f2fs_truncate(struct inode *inode) return 0; } -static int block_unaligned_IO(struct inode *inode, struct kiocb *iocb, - struct iov_iter *iter) -{ - unsigned int i_blkbits = READ_ONCE(inode->i_blkbits); - unsigned int blocksize_mask = (1 << i_blkbits) - 1; - loff_t offset = iocb->ki_pos; - unsigned long align = offset | iov_iter_alignment(iter); - - return align & blocksize_mask; -} - -static bool f2fs_force_buffered_io(struct inode *inode, - struct kiocb *iocb, struct iov_iter *iter) +static bool f2fs_force_buffered_io(struct inode *inode, int rw) { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); - int rw = iov_iter_rw(iter); if (!fscrypt_dio_supported(inode)) return true; @@ -836,13 +823,9 @@ static bool f2fs_force_buffered_io(struct inode *inode, if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize) return true; - if (f2fs_lfs_mode(sbi) && (rw == WRITE)) { - if (block_unaligned_IO(inode, iocb, iter)) - return true; - if (F2FS_IO_ALIGNED(sbi)) - return true; - } - if (is_sbi_flag_set(F2FS_I_SB(inode), SBI_CP_DISABLED)) + if (f2fs_lfs_mode(sbi) && rw == WRITE && F2FS_IO_ALIGNED(sbi)) + return true; + if (is_sbi_flag_set(sbi, SBI_CP_DISABLED)) return true; return false; @@ -4222,7 +4205,7 @@ static bool f2fs_should_use_dio(struct inode *inode, struct kiocb *iocb, if (!(iocb->ki_flags & IOCB_DIRECT)) return false; - if (f2fs_force_buffered_io(inode, iocb, iter)) + if (f2fs_force_buffered_io(inode, iov_iter_rw(iter))) return false; /* |