]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
proc: simpler iterations for /proc/*/cmdline
authorAlexey Dobriyan <adobriyan@gmail.com>
Fri, 8 Jun 2018 00:09:59 +0000 (17:09 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 8 Jun 2018 00:34:38 +0000 (17:34 -0700)
commit6a6cbe75dbdfaed6c4bbc2f109d69808f9cfa421
tree8285d47f902f9b925101404b84a38a83f3dfeefd
parent6a6b9c4c11f8da5156b72e868baf0c6c392a5014
proc: simpler iterations for /proc/*/cmdline

"rv" variable is used both as a counter of bytes transferred and an
error value holder but it can be reduced solely to error values if
original start of userspace buffer is stashed and used at the very end.

[akpm@linux-foundation.org: simplify cleanup code]
Link: http://lkml.kernel.org/r/20180221193009.GA28678@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/proc/base.c