tree a582f9fb922b27400f251686ab8212825b8a9745
parent 593bc695a1102a540f1613c651e73693b17a7343
author Alexey Dobriyan <adobriyan@gmail.com> 1517960226 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1517970763 -0800

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>