linux-next: manual merge of the vfs tree with the ext4 tree

From: Stephen Rothwell
Date: Mon Jun 08 2015 - 22:48:07 EST


Hi Al,

Today's linux-next merge of the vfs tree got a conflict in
fs/ext4/symlink.c between commit b7236e21d55f ("ext4 crypto: reorganize
how we store keys in the inode") from the ext4 tree and commit
680baacbca69 ("new ->follow_link() and ->put_link() calling
conventions") from the vfs tree.

I fixed it up (see below) and can carry the fix as necessary (no action
is required).

--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx

diff --cc fs/ext4/symlink.c
index 68e915aac0fe,ba5bd18a9825..000000000000
--- a/fs/ext4/symlink.c
+++ b/fs/ext4/symlink.c
@@@ -34,20 -35,19 +34,17 @@@ static const char *ext4_follow_link(str
int res;
u32 plen, max_size = inode->i_sb->s_blocksize;

- if (!ext4_encrypted_inode(inode))
- return page_follow_link_light(dentry, nd);
-
- ctx = ext4_get_fname_crypto_ctx(inode, inode->i_sb->s_blocksize);
- if (IS_ERR(ctx))
- return ERR_CAST(ctx);
+ res = ext4_get_encryption_info(inode);
+ if (res)
+ return ERR_PTR(res);

if (ext4_inode_is_fast_symlink(inode)) {
caddr = (char *) EXT4_I(inode)->i_data;
max_size = sizeof(EXT4_I(inode)->i_data);
} else {
cpage = read_mapping_page(inode->i_mapping, 0, NULL);
- if (IS_ERR(cpage)) {
- ext4_put_fname_crypto_ctx(&ctx);
+ if (IS_ERR(cpage))
- return cpage;
+ return ERR_CAST(cpage);
- }
caddr = kmap(cpage);
caddr[size] = 0;
}
@@@ -78,13 -77,14 +75,12 @@@
/* Null-terminate the name */
if (res <= plen)
paddr[res] = '\0';
- nd_set_link(nd, paddr);
- ext4_put_fname_crypto_ctx(&ctx);
if (cpage) {
kunmap(cpage);
page_cache_release(cpage);
}
- return NULL;
+ return *cookie = paddr;
errout:
- ext4_put_fname_crypto_ctx(&ctx);
if (cpage) {
kunmap(cpage);
page_cache_release(cpage);

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