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vfs: Add permission2 for filesystems with per mount permissions

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This allows filesystems to use their mount private data to
influence the permssions they return in permission2. It has
been separated into a new call to avoid disrupting current
permission users.

Change-Id: I9d416e3b8b6eca84ef3e336bd2af89ddd51df6ca
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>
This commit is contained in:
Daniel Rosenberg
2019-08-06 10:44:34 +02:00
committed by Francescodario Cuzzocrea
parent 52fbc9cbe5
commit 04932ff4a1
10 changed files with 159 additions and 71 deletions
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security/inode.c
+1 -1
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@@ -105,7 +105,7 @@ struct dentry *securityfs_create_file(const char *name, umode_t mode,
dir = parent->d_inode;
mutex_lock(&dir->i_mutex);
dentry = lookup_one_len(name, parent, strlen(name));
dentry = lookup_one_len2(name, mount, parent, strlen(name));
if (IS_ERR(dentry))
goto out;