tree 6445ebf0328e3227178f378c97be6b083cad087b
parent 47a150edc2ae734c0f4bf50aa19499e23b9a46f8
author Linus Torvalds <torvalds@linux-foundation.org> 1305312661 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1305312661 -0700

vfs: micro-optimize acl_permission_check()

It's a hot function, and we're better off not mixing types in the mask
calculations.  The compiler just ends up mixing 16-bit and 32-bit
operations, for no good reason.

So do everything in 'unsigned int' rather than mixing 'unsigned int'
masking with a 'umode_t' (16-bit) mode variable.

This, together with the parent commit (47a150edc2ae: "Cache user_ns in
struct cred") makes acl_permission_check() much nicer.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>