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(parent: 5b66719) | patch
proc: less memory for /proc/*/map_files readdir
authorAlexey Dobriyan <adobriyan@gmail.com>
Tue, 6 Feb 2018 23:37:06 +0000 (15:37 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 7 Feb 2018 02:32:43 +0000 (18:32 -0800)
commit52fbca905fafd45c401ea32b023b9d958903c042
treea582f9fb922b27400f251686ab8212825b8a9745tree | snapshot
parent5b66719e1989c4f26276a92c5adab79d2a1fad72commit | diff
proc: less memory for /proc/*/map_files readdir

dentry name can be evaluated later, right before calling into VFS.

Also, spend less time under ->mmap_sem.

Link: http://lkml.kernel.org/r/20171110163034.GA2534@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/proc/base.c diff | blob | history
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