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| author | Al Viro <viro@ZenIV.linux.org.uk> | 2008-10-31 23:28:30 +0000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-01 09:49:46 -0700 |
| commit | 233e70f4228e78eb2f80dc6650f65d3ae3dbf17c (patch) | |
| tree | 4e18fbe1851e6d2161b7f18265cb21f8a61e3ce7 /drivers/char/random.c | |
| parent | 3318a386e4ca68c76e0294363d29bdc46fcad670 (diff) | |
| download | lwn-233e70f4228e78eb2f80dc6650f65d3ae3dbf17c.tar.gz lwn-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/char/random.c')
| -rw-r--r-- | drivers/char/random.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index 705a839f1796..675076f5fca8 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1139,18 +1139,12 @@ static int random_fasync(int fd, struct file *filp, int on) return fasync_helper(fd, filp, on, &fasync); } -static int random_release(struct inode *inode, struct file *filp) -{ - return fasync_helper(-1, filp, 0, &fasync); -} - const struct file_operations random_fops = { .read = random_read, .write = random_write, .poll = random_poll, .unlocked_ioctl = random_ioctl, .fasync = random_fasync, - .release = random_release, }; const struct file_operations urandom_fops = { @@ -1158,7 +1152,6 @@ const struct file_operations urandom_fops = { .write = random_write, .unlocked_ioctl = random_ioctl, .fasync = random_fasync, - .release = random_release, }; /*************************************************************** |