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author | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 06:49:58 (GMT) |
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committer | Nick Piggin <npiggin@kernel.dk> | 2011-01-07 06:50:29 (GMT) |
commit | b74c79e99389cd79b31fcc08f82c24e492e63c7e (patch) | |
tree | 763c6b412517306670bc625e90035f2d16bb739f /fs/coda/pioctl.c | |
parent | 34286d6662308d82aed891852d04c7c3a2649b16 (diff) | |
download | linux-b74c79e99389cd79b31fcc08f82c24e492e63c7e.tar.xz |
fs: provide rcu-walk aware permission i_ops
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/coda/pioctl.c')
-rw-r--r-- | fs/coda/pioctl.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/coda/pioctl.c b/fs/coda/pioctl.c index 2fd89b5..741f0bd 100644 --- a/fs/coda/pioctl.c +++ b/fs/coda/pioctl.c @@ -24,7 +24,7 @@ #include <linux/coda_psdev.h> /* pioctl ops */ -static int coda_ioctl_permission(struct inode *inode, int mask); +static int coda_ioctl_permission(struct inode *inode, int mask, unsigned int flags); static long coda_pioctl(struct file *filp, unsigned int cmd, unsigned long user_data); @@ -41,8 +41,10 @@ const struct file_operations coda_ioctl_operations = { }; /* the coda pioctl inode ops */ -static int coda_ioctl_permission(struct inode *inode, int mask) +static int coda_ioctl_permission(struct inode *inode, int mask, unsigned int flags) { + if (flags & IPERM_FLAG_RCU) + return -ECHILD; return (mask & MAY_EXEC) ? -EACCES : 0; } |