[PATCH] madvise() does not always return -EBADF on non-file mapped area
authorsuzuki <suzuki@in.ibm.com>
Wed, 27 Jul 2005 18:43:59 +0000 (11:43 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Wed, 27 Jul 2005 23:25:54 +0000 (16:25 -0700)
commit165cd40235732644b1856a5ed5e158c9b93f6010
treec68180b6d700953530c8a7852a095f9ac4840345
parent4bfdf37830111321e2cd1fe0102dd776ce93194d
[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>
mm/madvise.c