tree c68180b6d700953530c8a7852a095f9ac4840345
parent 4bfdf37830111321e2cd1fe0102dd776ce93194d
author suzuki <suzuki@in.ibm.com> 1122489839 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1122506754 -0700

[PATCH] madvise() does not always return -EBADF on non-file mapped area

The madvise() system call returns -EBADF for areas which does not map to
files, only for *behaviour* request MADV_WILLNEED.

According to man pages, madvise returns :

EBADF - the map exists, but the area maps something that isn't a file.

Fixes bug 2995.

Signed-off-by: Suzuki K P <suzuki@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>