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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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fs/proc/proc_sysctl.c
+4 -1
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@@ -295,7 +295,7 @@ out:
return ret;
}
static int proc_sys_permission(struct inode *inode, int mask)
static int proc_sys_permission(struct inode *inode, int mask,unsigned int flags)
{
/*
* sysctl entries that are not writeable,
@@ -305,6 +305,9 @@ static int proc_sys_permission(struct inode *inode, int mask)
struct ctl_table *table;
int error;
if (flags & IPERM_FLAG_RCU)
return -ECHILD;
/* Executable files are not allowed under /proc/sys/ */
if ((mask & MAY_EXEC) && S_ISREG(inode->i_mode))
return -EACCES;