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| author | Alexey Dobriyan <adobriyan@gmail.com> | 2007-09-12 00:23:55 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-09-12 02:21:20 +0200 |
| commit | dd23aae4f5edf4e1dbd8f7f8013a754ba3253f48 (patch) | |
| tree | c7babf45f8132876e8a715f0327cf480c05c6131 /fs/select.c | |
| parent | Restore call_usermodehelper_pipe() behaviour (diff) | |
| download | linux-dd23aae4f5edf4e1dbd8f7f8013a754ba3253f48.tar.xz linux-dd23aae4f5edf4e1dbd8f7f8013a754ba3253f48.zip | |
Fix select on /proc files without ->poll
Taneli Vähäkangas <vahakang@cs.helsinki.fi> reported that commit
786d7e1612f0b0adb6046f19b906609e4fe8b1ba aka "Fix rmmod/read/write races
in /proc entries" broke SBCL + SLIME combo.
The old code in do_select() used DEFAULT_POLLMASK, if couldn't find
->poll handler. The new code makes ->poll always there and returns 0 by
default, which is not correct. Return DEFAULT_POLLMASK instead.
Steps to reproduce:
install emacs, SBCL, SLIME
emacs
M-x slime in *inferior-lisp* buffer
[watch it doing "Connecting to Swank on port X.."]
Please, apply before 2.6.23.
P.S.: why SBCL can't just read(2) /proc/cpuinfo is a mystery.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: T Taneli Vahakangas <vahakang@cs.helsinki.fi>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/select.c')
| -rw-r--r-- | fs/select.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/select.c b/fs/select.c index a974082b0824..46dca31c607a 100644 --- a/fs/select.c +++ b/fs/select.c @@ -26,8 +26,6 @@ #include <asm/uaccess.h> -#define DEFAULT_POLLMASK (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM) - struct poll_table_page { struct poll_table_page * next; struct poll_table_entry * entry; |