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fs: provide rcu-walk aware permission i_ops

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Signed-off-by: Nick Piggin <npiggin@kernel.dk>
This commit is contained in:
Nick Piggin
2011-01-07 17:49:58 +11:00
parent 34286d6662
commit b74c79e993
60 changed files with 287 additions and 146 deletions
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11
fs/sysfs/inode.c
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@@ -348,13 +348,18 @@ int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const void *ns, const cha
return -ENOENT;
}
int sysfs_permission(struct inode *inode, int mask)
int sysfs_permission(struct inode *inode, int mask, unsigned int flags)
{
struct sysfs_dirent *sd = inode->i_private;
struct sysfs_dirent *sd;
if (flags & IPERM_FLAG_RCU)
return -ECHILD;
sd = inode->i_private;
mutex_lock(&sysfs_mutex);
sysfs_refresh_inode(sd, inode);
mutex_unlock(&sysfs_mutex);
return generic_permission(inode, mask, NULL);
return generic_permission(inode, mask, flags, NULL);
}