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| author | Al Viro <viro@zeniv.linux.org.uk> | 2015-05-02 09:54:06 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-05-10 22:18:20 -0400 |
| commit | 61ba64fc0768879a300599b011c176203bdf27d9 (patch) | |
| tree | d04c61005dabd79e05edca9ed87c88c0a04905da /fs | |
| parent | a7a67e8a089e25ef48ab01dd34ce82678ef70f11 (diff) | |
| download | lwn-61ba64fc0768879a300599b011c176203bdf27d9.tar.gz lwn-61ba64fc0768879a300599b011c176203bdf27d9.zip | |
libfs: simple_follow_link()
let "fast" symlinks store the pointer to the body into ->i_link and
use simple_follow_link for ->follow_link()
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/inode.c | 1 | ||||
| -rw-r--r-- | fs/libfs.c | 13 |
2 files changed, 14 insertions, 0 deletions
diff --git a/fs/inode.c b/fs/inode.c index ea37cd17b53f..952fb4852e38 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -152,6 +152,7 @@ int inode_init_always(struct super_block *sb, struct inode *inode) inode->i_pipe = NULL; inode->i_bdev = NULL; inode->i_cdev = NULL; + inode->i_link = NULL; inode->i_rdev = 0; inode->dirtied_when = 0; diff --git a/fs/libfs.c b/fs/libfs.c index cb1fb4b9b637..72e4e015455f 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -1093,3 +1093,16 @@ simple_nosetlease(struct file *filp, long arg, struct file_lock **flp, return -EINVAL; } EXPORT_SYMBOL(simple_nosetlease); + +void *simple_follow_link(struct dentry *dentry, struct nameidata *nd) +{ + nd_set_link(nd, d_inode(dentry)->i_link); + return NULL; +} +EXPORT_SYMBOL(simple_follow_link); + +const struct inode_operations simple_symlink_inode_operations = { + .follow_link = simple_follow_link, + .readlink = generic_readlink +}; +EXPORT_SYMBOL(simple_symlink_inode_operations); |