diff options
| author | Eric Dumazet <dada1@cosmosbay.com> | 2006-03-28 11:56:34 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-28 19:16:04 +0200 |
| commit | e4a1f129f9e43a5e5d28fe6d1b214246a398cdce (patch) | |
| tree | 9a8277520d5ef1bf8e86f11d76e6f0244efd9330 /fs/select.c | |
| parent | [PATCH] Optimize select/poll by putting small data sets on the stack (diff) | |
| download | linux-e4a1f129f9e43a5e5d28fe6d1b214246a398cdce.tar.xz linux-e4a1f129f9e43a5e5d28fe6d1b214246a398cdce.zip | |
[PATCH] use fget_light() in select/poll
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to '')
| -rw-r--r-- | fs/select.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/select.c b/fs/select.c index d8b4f0722b8d..05cd199a1127 100644 --- a/fs/select.c +++ b/fs/select.c @@ -231,17 +231,18 @@ int do_select(int n, fd_set_bits *fds, s64 *timeout) } for (j = 0; j < __NFDBITS; ++j, ++i, bit <<= 1) { + int fput_needed; if (i >= n) break; if (!(bit & all_bits)) continue; - file = fget(i); + file = fget_light(i, &fput_needed); if (file) { f_op = file->f_op; mask = DEFAULT_POLLMASK; if (f_op && f_op->poll) mask = (*f_op->poll)(file, retval ? NULL : wait); - fput(file); + fput_light(file, fput_needed); if ((mask & POLLIN_SET) && (in & bit)) { res_in |= bit; retval++; @@ -557,14 +558,15 @@ static void do_pollfd(unsigned int num, struct pollfd * fdpage, fdp = fdpage+i; fd = fdp->fd; if (fd >= 0) { - struct file * file = fget(fd); + int fput_needed; + struct file * file = fget_light(fd, &fput_needed); mask = POLLNVAL; if (file != NULL) { mask = DEFAULT_POLLMASK; if (file->f_op && file->f_op->poll) mask = file->f_op->poll(file, *pwait); mask &= fdp->events | POLLERR | POLLHUP; - fput(file); + fput_light(file, fput_needed); } if (mask) { *pwait = NULL; |