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fs: take the ACL checks to common code

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Replace the ->check_acl method with a ->get_acl method that simply reads an
ACL from disk after having a cache miss.  This means we can replace the ACL
checking boilerplate code with a single implementation in namei.c.

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Christoph Hellwig 2011-07-23 17:37:31 +02:00 • committed by Al Viro
commit 4e34e719e4
52 changed files with 92 additions and 294 deletions
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18
fs/jfs/acl.c
View file

@ -27,7 +27,7 @@
#include "jfs_xattr.h"
#include "jfs_acl.h"
static struct posix_acl *jfs_get_acl(struct inode *inode, int type)
struct posix_acl *jfs_get_acl(struct inode *inode, int type)
{
struct posix_acl *acl;
char *ea_name;
@ -114,22 +114,6 @@ out:
return rc;
}
int jfs_check_acl(struct inode *inode, int mask)
{
struct posix_acl *acl;
acl = jfs_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl) {
int error = posix_acl_permission(inode, acl, mask);
posix_acl_release(acl);
return error;
}
return -EAGAIN;
}
int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir)
{
struct posix_acl *acl = NULL;

2
fs/jfs/file.c
View file

@ -140,7 +140,7 @@ const struct inode_operations jfs_file_inode_operations = {
.removexattr = jfs_removexattr,
.setattr = jfs_setattr,
#ifdef CONFIG_JFS_POSIX_ACL
.check_acl = jfs_check_acl,
.get_acl = jfs_get_acl,
#endif
};

2
fs/jfs/jfs_acl.h
View file

@ -20,7 +20,7 @@
#ifdef CONFIG_JFS_POSIX_ACL
int jfs_check_acl(struct inode *, int);
struct posix_acl *jfs_get_acl(struct inode *inode, int type);
int jfs_init_acl(tid_t, struct inode *, struct inode *);
int jfs_acl_chmod(struct inode *inode);

2
fs/jfs/namei.c
View file

@ -1537,7 +1537,7 @@ const struct inode_operations jfs_dir_inode_operations = {
.removexattr = jfs_removexattr,
.setattr = jfs_setattr,
#ifdef CONFIG_JFS_POSIX_ACL
.check_acl = jfs_check_acl,
.get_acl = jfs_get_acl,
#endif
};