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-rw-r--r--mm/shmem.c32
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
2477static void *shmem_follow_short_symlink(struct dentry *dentry, struct nameidata *nd) 2478static 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
2483static 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
2493static void shmem_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie) 2489static 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
2643static const struct inode_operations shmem_short_symlink_operations = { 2637static 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,