diff options
Diffstat (limited to 'mm/shmem.c')
-rw-r--r-- | mm/shmem.c | 32 |
1 files changed, 13 insertions, 19 deletions
diff --git a/mm/shmem.c b/mm/shmem.c index 47d536e59fc0..3759099d8ce4 100644 --- a/mm/shmem.c +++ b/mm/shmem.c | |||
@@ -2451,6 +2451,7 @@ static int shmem_symlink(struct inode *dir, struct dentry *dentry, const char *s | |||
2451 | return -ENOMEM; | 2451 | return -ENOMEM; |
2452 | } | 2452 | } |
2453 | inode->i_op = &shmem_short_symlink_operations; | 2453 | inode->i_op = &shmem_short_symlink_operations; |
2454 | inode->i_link = info->symlink; | ||
2454 | } else { | 2455 | } else { |
2455 | error = shmem_getpage(inode, 0, &page, SGP_WRITE, NULL); | 2456 | error = shmem_getpage(inode, 0, &page, SGP_WRITE, NULL); |
2456 | if (error) { | 2457 | if (error) { |
@@ -2474,30 +2475,23 @@ static int shmem_symlink(struct inode *dir, struct dentry *dentry, const char *s | |||
2474 | return 0; | 2475 | return 0; |
2475 | } | 2476 | } |
2476 | 2477 | ||
2477 | static void *shmem_follow_short_symlink(struct dentry *dentry, struct nameidata *nd) | 2478 | static const char *shmem_follow_link(struct dentry *dentry, void **cookie) |
2478 | { | ||
2479 | nd_set_link(nd, SHMEM_I(d_inode(dentry))->symlink); | ||
2480 | return NULL; | ||
2481 | } | ||
2482 | |||
2483 | static void *shmem_follow_link(struct dentry *dentry, struct nameidata *nd) | ||
2484 | { | 2479 | { |
2485 | struct page *page = NULL; | 2480 | struct page *page = NULL; |
2486 | int error = shmem_getpage(d_inode(dentry), 0, &page, SGP_READ, NULL); | 2481 | int error = shmem_getpage(d_inode(dentry), 0, &page, SGP_READ, NULL); |
2487 | nd_set_link(nd, error ? ERR_PTR(error) : kmap(page)); | 2482 | if (error) |
2488 | if (page) | 2483 | return ERR_PTR(error); |
2489 | unlock_page(page); | 2484 | unlock_page(page); |
2490 | return page; | 2485 | *cookie = page; |
2486 | return kmap(page); | ||
2491 | } | 2487 | } |
2492 | 2488 | ||
2493 | static void shmem_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie) | 2489 | static void shmem_put_link(struct inode *unused, void *cookie) |
2494 | { | 2490 | { |
2495 | if (!IS_ERR(nd_get_link(nd))) { | 2491 | struct page *page = cookie; |
2496 | struct page *page = cookie; | 2492 | kunmap(page); |
2497 | kunmap(page); | 2493 | mark_page_accessed(page); |
2498 | mark_page_accessed(page); | 2494 | page_cache_release(page); |
2499 | page_cache_release(page); | ||
2500 | } | ||
2501 | } | 2495 | } |
2502 | 2496 | ||
2503 | #ifdef CONFIG_TMPFS_XATTR | 2497 | #ifdef CONFIG_TMPFS_XATTR |
@@ -2642,7 +2636,7 @@ static ssize_t shmem_listxattr(struct dentry *dentry, char *buffer, size_t size) | |||
2642 | 2636 | ||
2643 | static const struct inode_operations shmem_short_symlink_operations = { | 2637 | static const struct inode_operations shmem_short_symlink_operations = { |
2644 | .readlink = generic_readlink, | 2638 | .readlink = generic_readlink, |
2645 | .follow_link = shmem_follow_short_symlink, | 2639 | .follow_link = simple_follow_link, |
2646 | #ifdef CONFIG_TMPFS_XATTR | 2640 | #ifdef CONFIG_TMPFS_XATTR |
2647 | .setxattr = shmem_setxattr, | 2641 | .setxattr = shmem_setxattr, |
2648 | .getxattr = shmem_getxattr, | 2642 | .getxattr = shmem_getxattr, |