diff options
Diffstat (limited to '')
| -rw-r--r-- | fs/fuse/dir.c | 2 | ||||
| -rw-r--r-- | fs/namei.c | 24 | ||||
| -rw-r--r-- | include/linux/fs.h | 2 |
3 files changed, 22 insertions, 6 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 198862b086ff..3805f9b06c9d 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -1636,7 +1636,7 @@ static const char *fuse_get_link(struct dentry *dentry, struct inode *inode, goto out_err; if (fc->cache_symlinks) - return page_get_link(dentry, inode, callback); + return page_get_link_raw(dentry, inode, callback); err = -ECHILD; if (!dentry) diff --git a/fs/namei.c b/fs/namei.c index 3ab9440c5b93..ecb7b95c2ca3 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -5356,10 +5356,9 @@ const char *vfs_get_link(struct dentry *dentry, struct delayed_call *done) EXPORT_SYMBOL(vfs_get_link); /* get the link contents into pagecache */ -const char *page_get_link(struct dentry *dentry, struct inode *inode, - struct delayed_call *callback) +static char *__page_get_link(struct dentry *dentry, struct inode *inode, + struct delayed_call *callback) { - char *kaddr; struct page *page; struct address_space *mapping = inode->i_mapping; @@ -5378,8 +5377,23 @@ const char *page_get_link(struct dentry *dentry, struct inode *inode, } set_delayed_call(callback, page_put_link, page); BUG_ON(mapping_gfp_mask(mapping) & __GFP_HIGHMEM); - kaddr = page_address(page); - nd_terminate_link(kaddr, inode->i_size, PAGE_SIZE - 1); + return page_address(page); +} + +const char *page_get_link_raw(struct dentry *dentry, struct inode *inode, + struct delayed_call *callback) +{ + return __page_get_link(dentry, inode, callback); +} +EXPORT_SYMBOL_GPL(page_get_link_raw); + +const char *page_get_link(struct dentry *dentry, struct inode *inode, + struct delayed_call *callback) +{ + char *kaddr = __page_get_link(dentry, inode, callback); + + if (!IS_ERR(kaddr)) + nd_terminate_link(kaddr, inode->i_size, PAGE_SIZE - 1); return kaddr; } diff --git a/include/linux/fs.h b/include/linux/fs.h index 2c3b2f8a621f..9346adf28f7b 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -3452,6 +3452,8 @@ extern const struct file_operations generic_ro_fops; extern int readlink_copy(char __user *, int, const char *, int); extern int page_readlink(struct dentry *, char __user *, int); +extern const char *page_get_link_raw(struct dentry *, struct inode *, + struct delayed_call *); extern const char *page_get_link(struct dentry *, struct inode *, struct delayed_call *); extern void page_put_link(void *); |