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| author | Bart Van Assche <bvanassche@acm.org> | 2024-02-02 23:39:22 +0300 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-02-06 16:30:47 +0300 |
| commit | 1505ba06e52e701600172bccbc3aa7fb9bd5d0da (patch) | |
| tree | 903b208ebc5c21e712cc644fef912b221aebe6d4 /drivers/fpga/xilinx-selectmap.c | |
| parent | e769779c0c2c3a475c6b7313d35ff0aa3aceb780 (diff) | |
| download | linux-1505ba06e52e701600172bccbc3aa7fb9bd5d0da.tar.xz | |
fs: Split fcntl_rw_hint()
Split fcntl_rw_hint() such that there is one helper function per fcntl.
Use READ_ONCE() and WRITE_ONCE() to access the i_write_hint member
instead of protecting such accesses with the inode lock. READ_ONCE() is
not used in I/O path code that reads i_write_hint. Users who want
F_SET_RW_HINT to affect I/O need to make sure that F_SET_RW_HINT has
completed before I/O is submitted that should use the configured write
hint.
Cc: Christoph Hellwig <hch@lst.de>
Suggested-by: Christoph Hellwig <hch@lst.de>
Cc: Kanchan Joshi <joshi.k@samsung.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240202203926.2478590-4-bvanassche@acm.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'drivers/fpga/xilinx-selectmap.c')
0 files changed, 0 insertions, 0 deletions