diff options
| author | Al Viro <viro@ZenIV.linux.org.uk> | 2008-11-01 00:28:30 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-01 17:49:46 +0100 |
| commit | 233e70f4228e78eb2f80dc6650f65d3ae3dbf17c (patch) | |
| tree | 4e18fbe1851e6d2161b7f18265cb21f8a61e3ce7 /drivers/message | |
| parent | file caps: always start with clear bprm->caps_* (diff) | |
| download | linux-233e70f4228e78eb2f80dc6650f65d3ae3dbf17c.tar.xz linux-233e70f4228e78eb2f80dc6650f65d3ae3dbf17c.zip | |
saner FASYNC handling on file close
As it is, all instances of ->release() for files that have ->fasync()
need to remember to evict file from fasync lists; forgetting that
creates a hole and we actually have a bunch that *does* forget.
So let's keep our lives simple - let __fput() check FASYNC in
file->f_flags and call ->fasync() there if it's been set. And lose that
crap in ->release() instances - leaving it there is still valid, but we
don't have to bother anymore.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/message')
| -rw-r--r-- | drivers/message/fusion/mptctl.c | 7 | ||||
| -rw-r--r-- | drivers/message/i2o/i2o_config.c | 21 |
2 files changed, 5 insertions, 23 deletions
diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c index f5233f3d9eff..b89f476cd0a9 100644 --- a/drivers/message/fusion/mptctl.c +++ b/drivers/message/fusion/mptctl.c @@ -559,12 +559,6 @@ mptctl_fasync(int fd, struct file *filep, int mode) return ret; } -static int -mptctl_release(struct inode *inode, struct file *filep) -{ - return fasync_helper(-1, filep, 0, &async_queue); -} - /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /* * MPT ioctl handler @@ -2706,7 +2700,6 @@ mptctl_hp_targetinfo(unsigned long arg) static const struct file_operations mptctl_fops = { .owner = THIS_MODULE, .llseek = no_llseek, - .release = mptctl_release, .fasync = mptctl_fasync, .unlocked_ioctl = mptctl_ioctl, #ifdef CONFIG_COMPAT diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c index a3fabdbe6ca6..f3384c32b9a1 100644 --- a/drivers/message/i2o/i2o_config.c +++ b/drivers/message/i2o/i2o_config.c @@ -1097,28 +1097,17 @@ static int cfg_fasync(int fd, struct file *fp, int on) static int cfg_release(struct inode *inode, struct file *file) { ulong id = (ulong) file->private_data; - struct i2o_cfg_info *p1, *p2; + struct i2o_cfg_info *p, **q; unsigned long flags; lock_kernel(); - p1 = p2 = NULL; - spin_lock_irqsave(&i2o_config_lock, flags); - for (p1 = open_files; p1;) { - if (p1->q_id == id) { - - if (p1->fasync) - cfg_fasync(-1, file, 0); - if (p2) - p2->next = p1->next; - else - open_files = p1->next; - - kfree(p1); + for (q = &open_files; (p = *q) != NULL; q = &p->next) { + if (p->q_id == id) { + *q = p->next; + kfree(p); break; } - p2 = p1; - p1 = p1->next; } spin_unlock_irqrestore(&i2o_config_lock, flags); unlock_kernel(); |