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author | 2018-08-17 15:45:32 -0700 | |
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committer | 2018-08-17 16:20:29 -0700 | |
commit | 357c1206520da7a40e383fe329ce379bda722cd9 (patch) | |
tree | 693fa00dcea5e0b743b7ae3b1f49adb85ea9240d /security | |
parent | mm: thp: inc counter for collapsed shmem THP (diff) | |
download | linux-357c1206520da7a40e383fe329ce379bda722cd9.tar.gz linux-357c1206520da7a40e383fe329ce379bda722cd9.tar.bz2 linux-357c1206520da7a40e383fe329ce379bda722cd9.zip |
mpage: add argument structure for do_mpage_readpage()
Patch series "Submit ->readpages() IO as read-ahead", v4.
The only caller of ->readpages() is from read-ahead, yet we don't submit
IO flagged with REQ_RAHEAD. This means we don't see it in blktrace, for
instance, which is a shame. Additionally, it's preventing further
functional changes in the block layer for deadling with read-ahead more
intelligently. We already make assumptions about ->readpages() just
being for read-ahead in the mpage implementation, using
readahead_gfp_mask(mapping) as out GFP mask of choice.
This small series fixes up mpage_readpages() to submit with REQ_RAHEAD,
which takes care of file systems using mpage_readpages(). The first
patch is a prep patch, that makes do_mpage_readpage() take an argument
structure.
This patch (of 4):
We're currently passing 8 arguments to this function, clean it up a bit
by packing the arguments in an args structure we pass to it.
No intentional functional changes in this patch.
[akpm@linux-foundation.org: coding-style fixes]
Link: http://lkml.kernel.org/r/20180621010725.17813-2-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Chris Mason <clm@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions