vfs: add a comment to inode_permission()
Acked-by: J. Bruce Fields <bfields@redhat.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Andreas Gruenbacher <agruen@kernel.org> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
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1 changed files with 4 additions and 2 deletions
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@ -221,7 +221,7 @@ static int check_acl(struct inode *inode, int mask)
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}
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/*
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* This does basic POSIX ACL permission checking
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* This does the basic permission checking
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*/
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static int acl_permission_check(struct inode *inode, int mask)
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{
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@ -271,7 +271,7 @@ int generic_permission(struct inode *inode, int mask)
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int ret;
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/*
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* Do the basic POSIX ACL permission checks.
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* Do the basic permission checks.
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*/
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ret = acl_permission_check(inode, mask);
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if (ret != -EACCES)
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@ -335,6 +335,8 @@ static inline int do_inode_permission(struct inode *inode, int mask)
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* We use "fsuid" for this, letting us set arbitrary permissions
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* for filesystem access without changing the "normal" uids which
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* are used for other things.
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*
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* When checking for MAY_APPEND, MAY_WRITE must also be set in @mask.
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*/
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int inode_permission(struct inode *inode, int mask)
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{
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