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[PATCH] add a file_permission helper

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A few more callers of permission() just want to check for a different access
pattern on an already open file.  This patch adds a wrapper for permission()
that takes a file in preparation of per-mount read-only support and to clean
up the callers a little.  The helper is not intended for new code, everything
without the interface set in stone should use vfs_permission()

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Christoph Hellwig 2005-11-08 21:35:04 -08:00 • committed by Linus Torvalds
commit 8c744fb83d
8 changed files with 47 additions and 21 deletions
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fs/udf/file.c
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@ -186,7 +186,7 @@ int udf_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
{
int result = -EINVAL;
if ( permission(inode, MAY_READ, NULL) != 0 )
if ( file_permission(filp, MAY_READ) != 0 )
{
udf_debug("no permission to access inode %lu\n",
inode->i_ino);