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| author | Jiri Slaby <jslaby@suse.cz> | 2010-03-05 13:42:42 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-06 11:26:29 -0800 |
| commit | d554ed895dc8f293cc712c71f14b101ace82579a (patch) | |
| tree | fd29ba33d640e156e2ca4267ffbdb9dc566fd3d6 /fs/select.c | |
| parent | 221e3ebf6d5f2625373573155924e39f196c5d3d (diff) | |
| download | lwn-d554ed895dc8f293cc712c71f14b101ace82579a.tar.gz lwn-d554ed895dc8f293cc712c71f14b101ace82579a.zip | |
fs: use rlimit helpers
Make sure compiler won't do weird things with limits. E.g. fetching them
twice may return 2 different values after writable limits are implemented.
I.e. either use rlimit helpers added in commit 3e10e716abf3 ("resource:
add helpers for fetching rlimits") or ACCESS_ONCE if not applicable.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
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, 1 insertions, 1 deletions
diff --git a/fs/select.c b/fs/select.c index fd38ce2e32e3..73715e90030f 100644 --- a/fs/select.c +++ b/fs/select.c @@ -821,7 +821,7 @@ int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds, struct poll_list *walk = head; unsigned long todo = nfds; - if (nfds > current->signal->rlim[RLIMIT_NOFILE].rlim_cur) + if (nfds > rlimit(RLIMIT_NOFILE)) return -EINVAL; len = min_t(unsigned int, nfds, N_STACK_PPS); |