aboutsummaryrefslogtreecommitdiffstats
path: root/fs/namei.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/namei.c')
-rw-r--r--fs/namei.c27
1 files changed, 17 insertions, 10 deletions
diff --git a/fs/namei.c b/fs/namei.c
index a7dce91a7e4..b86b96fe1dc 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1641,7 +1641,7 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
1641 if (nd->last.name[nd->last.len]) { 1641 if (nd->last.name[nd->last.len]) {
1642 if (open_flag & O_CREAT) 1642 if (open_flag & O_CREAT)
1643 goto exit; 1643 goto exit;
1644 nd->flags |= LOOKUP_DIRECTORY; 1644 nd->flags |= LOOKUP_DIRECTORY | LOOKUP_FOLLOW;
1645 } 1645 }
1646 1646
1647 /* just plain open? */ 1647 /* just plain open? */
@@ -1830,6 +1830,8 @@ reval:
1830 } 1830 }
1831 if (open_flag & O_DIRECTORY) 1831 if (open_flag & O_DIRECTORY)
1832 nd.flags |= LOOKUP_DIRECTORY; 1832 nd.flags |= LOOKUP_DIRECTORY;
1833 if (!(open_flag & O_NOFOLLOW))
1834 nd.flags |= LOOKUP_FOLLOW;
1833 filp = do_last(&nd, &path, open_flag, acc_mode, mode, pathname); 1835 filp = do_last(&nd, &path, open_flag, acc_mode, mode, pathname);
1834 while (unlikely(!filp)) { /* trailing symlink */ 1836 while (unlikely(!filp)) { /* trailing symlink */
1835 struct path holder; 1837 struct path holder;
@@ -1837,7 +1839,7 @@ reval:
1837 void *cookie; 1839 void *cookie;
1838 error = -ELOOP; 1840 error = -ELOOP;
1839 /* S_ISDIR part is a temporary automount kludge */ 1841 /* S_ISDIR part is a temporary automount kludge */
1840 if ((open_flag & O_NOFOLLOW) && !S_ISDIR(inode->i_mode)) 1842 if (!(nd.flags & LOOKUP_FOLLOW) && !S_ISDIR(inode->i_mode))
1841 goto exit_dput; 1843 goto exit_dput;
1842 if (count++ == 32) 1844 if (count++ == 32)
1843 goto exit_dput; 1845 goto exit_dput;
@@ -2174,8 +2176,10 @@ int vfs_rmdir(struct inode *dir, struct dentry *dentry)
2174 error = security_inode_rmdir(dir, dentry); 2176 error = security_inode_rmdir(dir, dentry);
2175 if (!error) { 2177 if (!error) {
2176 error = dir->i_op->rmdir(dir, dentry); 2178 error = dir->i_op->rmdir(dir, dentry);
2177 if (!error) 2179 if (!error) {
2178 dentry->d_inode->i_flags |= S_DEAD; 2180 dentry->d_inode->i_flags |= S_DEAD;
2181 dont_mount(dentry);
2182 }
2179 } 2183 }
2180 } 2184 }
2181 mutex_unlock(&dentry->d_inode->i_mutex); 2185 mutex_unlock(&dentry->d_inode->i_mutex);
@@ -2259,7 +2263,7 @@ int vfs_unlink(struct inode *dir, struct dentry *dentry)
2259 if (!error) { 2263 if (!error) {
2260 error = dir->i_op->unlink(dir, dentry); 2264 error = dir->i_op->unlink(dir, dentry);
2261 if (!error) 2265 if (!error)
2262 dentry->d_inode->i_flags |= S_DEAD; 2266 dont_mount(dentry);
2263 } 2267 }
2264 } 2268 }
2265 mutex_unlock(&dentry->d_inode->i_mutex); 2269 mutex_unlock(&dentry->d_inode->i_mutex);
@@ -2570,17 +2574,20 @@ static int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry,
2570 return error; 2574 return error;
2571 2575
2572 target = new_dentry->d_inode; 2576 target = new_dentry->d_inode;
2573 if (target) { 2577 if (target)
2574 mutex_lock(&target->i_mutex); 2578 mutex_lock(&target->i_mutex);
2575 dentry_unhash(new_dentry);
2576 }
2577 if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry)) 2579 if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry))
2578 error = -EBUSY; 2580 error = -EBUSY;
2579 else 2581 else {
2582 if (target)
2583 dentry_unhash(new_dentry);
2580 error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry); 2584 error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry);
2585 }
2581 if (target) { 2586 if (target) {
2582 if (!error) 2587 if (!error) {
2583 target->i_flags |= S_DEAD; 2588 target->i_flags |= S_DEAD;
2589 dont_mount(new_dentry);
2590 }
2584 mutex_unlock(&target->i_mutex); 2591 mutex_unlock(&target->i_mutex);
2585 if (d_unhashed(new_dentry)) 2592 if (d_unhashed(new_dentry))
2586 d_rehash(new_dentry); 2593 d_rehash(new_dentry);
@@ -2612,7 +2619,7 @@ static int vfs_rename_other(struct inode *old_dir, struct dentry *old_dentry,
2612 error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry); 2619 error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry);
2613 if (!error) { 2620 if (!error) {
2614 if (target) 2621 if (target)
2615 target->i_flags |= S_DEAD; 2622 dont_mount(new_dentry);
2616 if (!(old_dir->i_sb->s_type->fs_flags & FS_RENAME_DOES_D_MOVE)) 2623 if (!(old_dir->i_sb->s_type->fs_flags & FS_RENAME_DOES_D_MOVE))
2617 d_move(old_dentry, new_dentry); 2624 d_move(old_dentry, new_dentry);
2618 } 2625 }