diff options
Diffstat (limited to 'fs/select.c')
-rw-r--r-- | fs/select.c | 31 |
1 files changed, 13 insertions, 18 deletions
diff --git a/fs/select.c b/fs/select.c index db14c781335e..2ef72d965036 100644 --- a/fs/select.c +++ b/fs/select.c | |||
@@ -220,8 +220,7 @@ static void __pollwait(struct file *filp, wait_queue_head_t *wait_address, | |||
220 | struct poll_table_entry *entry = poll_get_entry(pwq); | 220 | struct poll_table_entry *entry = poll_get_entry(pwq); |
221 | if (!entry) | 221 | if (!entry) |
222 | return; | 222 | return; |
223 | get_file(filp); | 223 | entry->filp = get_file(filp); |
224 | entry->filp = filp; | ||
225 | entry->wait_address = wait_address; | 224 | entry->wait_address = wait_address; |
226 | entry->key = p->_key; | 225 | entry->key = p->_key; |
227 | init_waitqueue_func_entry(&entry->wait, pollwake); | 226 | init_waitqueue_func_entry(&entry->wait, pollwake); |
@@ -429,8 +428,6 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time) | |||
429 | for (i = 0; i < n; ++rinp, ++routp, ++rexp) { | 428 | for (i = 0; i < n; ++rinp, ++routp, ++rexp) { |
430 | unsigned long in, out, ex, all_bits, bit = 1, mask, j; | 429 | unsigned long in, out, ex, all_bits, bit = 1, mask, j; |
431 | unsigned long res_in = 0, res_out = 0, res_ex = 0; | 430 | unsigned long res_in = 0, res_out = 0, res_ex = 0; |
432 | const struct file_operations *f_op = NULL; | ||
433 | struct file *file = NULL; | ||
434 | 431 | ||
435 | in = *inp++; out = *outp++; ex = *exp++; | 432 | in = *inp++; out = *outp++; ex = *exp++; |
436 | all_bits = in | out | ex; | 433 | all_bits = in | out | ex; |
@@ -440,20 +437,21 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time) | |||
440 | } | 437 | } |
441 | 438 | ||
442 | for (j = 0; j < BITS_PER_LONG; ++j, ++i, bit <<= 1) { | 439 | for (j = 0; j < BITS_PER_LONG; ++j, ++i, bit <<= 1) { |
443 | int fput_needed; | 440 | struct fd f; |
444 | if (i >= n) | 441 | if (i >= n) |
445 | break; | 442 | break; |
446 | if (!(bit & all_bits)) | 443 | if (!(bit & all_bits)) |
447 | continue; | 444 | continue; |
448 | file = fget_light(i, &fput_needed); | 445 | f = fdget(i); |
449 | if (file) { | 446 | if (f.file) { |
450 | f_op = file->f_op; | 447 | const struct file_operations *f_op; |
448 | f_op = f.file->f_op; | ||
451 | mask = DEFAULT_POLLMASK; | 449 | mask = DEFAULT_POLLMASK; |
452 | if (f_op && f_op->poll) { | 450 | if (f_op && f_op->poll) { |
453 | wait_key_set(wait, in, out, bit); | 451 | wait_key_set(wait, in, out, bit); |
454 | mask = (*f_op->poll)(file, wait); | 452 | mask = (*f_op->poll)(f.file, wait); |
455 | } | 453 | } |
456 | fput_light(file, fput_needed); | 454 | fdput(f); |
457 | if ((mask & POLLIN_SET) && (in & bit)) { | 455 | if ((mask & POLLIN_SET) && (in & bit)) { |
458 | res_in |= bit; | 456 | res_in |= bit; |
459 | retval++; | 457 | retval++; |
@@ -726,20 +724,17 @@ static inline unsigned int do_pollfd(struct pollfd *pollfd, poll_table *pwait) | |||
726 | mask = 0; | 724 | mask = 0; |
727 | fd = pollfd->fd; | 725 | fd = pollfd->fd; |
728 | if (fd >= 0) { | 726 | if (fd >= 0) { |
729 | int fput_needed; | 727 | struct fd f = fdget(fd); |
730 | struct file * file; | ||
731 | |||
732 | file = fget_light(fd, &fput_needed); | ||
733 | mask = POLLNVAL; | 728 | mask = POLLNVAL; |
734 | if (file != NULL) { | 729 | if (f.file) { |
735 | mask = DEFAULT_POLLMASK; | 730 | mask = DEFAULT_POLLMASK; |
736 | if (file->f_op && file->f_op->poll) { | 731 | if (f.file->f_op && f.file->f_op->poll) { |
737 | pwait->_key = pollfd->events|POLLERR|POLLHUP; | 732 | pwait->_key = pollfd->events|POLLERR|POLLHUP; |
738 | mask = file->f_op->poll(file, pwait); | 733 | mask = f.file->f_op->poll(f.file, pwait); |
739 | } | 734 | } |
740 | /* Mask out unneeded events. */ | 735 | /* Mask out unneeded events. */ |
741 | mask &= pollfd->events | POLLERR | POLLHUP; | 736 | mask &= pollfd->events | POLLERR | POLLHUP; |
742 | fput_light(file, fput_needed); | 737 | fdput(f); |
743 | } | 738 | } |
744 | } | 739 | } |
745 | pollfd->revents = mask; | 740 | pollfd->revents = mask; |