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[1/2] ext4: skip ext4_init_security() and encryption on ea_inodes

Message ID 20170706023819.32272-1-tahsin@google.com (mailing list archive)
State Not Applicable
Headers show

Commit Message

Tahsin Erdogan July 6, 2017, 2:38 a.m. UTC 
Extended attribute inodes are internal to ext4. Adding encryption/security
related attributes on them would mean dealing with nested calls into ea code.
Since they have no direct exposure to user mode, just avoid creating ea
entries for them.

Signed-off-by: Tahsin Erdogan <tahsin@google.com>
---
 fs/ext4/ialloc.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)
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Patch

diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index fb1b3df17f6e..0c79e3efcaf7 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -771,7 +771,8 @@  struct inode *__ext4_new_inode(handle_t *handle, struct inode *dir,
 
 	if ((ext4_encrypted_inode(dir) ||
 	     DUMMY_ENCRYPTION_ENABLED(EXT4_SB(dir->i_sb))) &&
-	    (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))) {
+	    (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)) &&
+	    !(i_flags & EXT4_EA_INODE_FL)) {
 		err = fscrypt_get_encryption_info(dir);
 		if (err)
 			return ERR_PTR(err);
@@ -1114,11 +1115,11 @@  struct inode *__ext4_new_inode(handle_t *handle, struct inode *dir,
 		err = ext4_init_acl(handle, inode, dir);
 		if (err)
 			goto fail_free_drop;
-	}
 
-	err = ext4_init_security(handle, inode, dir, qstr);
-	if (err)
-		goto fail_free_drop;
+		err = ext4_init_security(handle, inode, dir, qstr);
+		if (err)
+			goto fail_free_drop;
+	}
 
 	if (ext4_has_feature_extents(sb)) {
 		/* set extent flag only for directory, file and normal symlink*/