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authorChristian Brauner <christian.brauner@ubuntu.com>2021-01-21 16:19:22 +0300
committerChristian Brauner <christian.brauner@ubuntu.com>2021-01-24 16:27:16 +0300
commit02f92b3868a1b34ab98464e76b0e4e060474ba10 (patch)
tree355710b868f8a26f8fd5ba413938f92f8a24b68a /fs/udf
parente6c9a71451560edba343cbcbd500bea0a188f0d1 (diff)
downloadlinux-02f92b3868a1b34ab98464e76b0e4e060474ba10.tar.xz
fs: add file and path permissions helpers
Add two simple helpers to check permissions on a file and path respectively and convert over some callers. It simplifies quite a few codepaths and also reduces the churn in later patches quite a bit. Christoph also correctly points out that this makes codepaths (e.g. ioctls) way easier to follow that would otherwise have to do more complex argument passing than necessary. Link: https://lore.kernel.org/r/20210121131959.646623-4-christian.brauner@ubuntu.com Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Suggested-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: James Morris <jamorris@linux.microsoft.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Diffstat (limited to 'fs/udf')
-rw-r--r--fs/udf/file.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/udf/file.c b/fs/udf/file.c
index ad8eefad27d7..3671a40ed3c3 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -183,7 +183,7 @@ long udf_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
long old_block, new_block;
int result;
- if (inode_permission(inode, MAY_READ) != 0) {
+ if (file_permission(filp, MAY_READ) != 0) {
udf_debug("no permission to access inode %lu\n", inode->i_ino);
return -EPERM;
}