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author | Nick Piggin <npiggin@suse.de> | 2009-11-18 05:30:19 +0100 |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-12-17 10:51:40 -0500 |
commit | a3a065e3f13da8a3470ed09c7f38aad256083726 (patch) | |
tree | 03e36f66709fe3d1679b0f0036f2ad3449d92dee /fs/anon_inodes.c | |
parent | b9aff027b2c1d6019d237382c78fd396f9de2ea5 (diff) | |
download | linux-3.10-a3a065e3f13da8a3470ed09c7f38aad256083726.tar.gz linux-3.10-a3a065e3f13da8a3470ed09c7f38aad256083726.tar.bz2 linux-3.10-a3a065e3f13da8a3470ed09c7f38aad256083726.zip |
fs: no games with DCACHE_UNHASHED
Filesystems outside the regular namespace do not have to clear DCACHE_UNHASHED
in order to have a working /proc/$pid/fd/XXX. Nothing in proc prevents the
fd link from being used if its dentry is not in the hash.
Also, it does not get put into the dcache hash if DCACHE_UNHASHED is clear;
that depends on the filesystem calling d_add or d_rehash.
So delete the misleading comments and needless code.
Acked-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/anon_inodes.c')
-rw-r--r-- | fs/anon_inodes.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c index 01c529a3f7d..2c994591f4d 100644 --- a/fs/anon_inodes.c +++ b/fs/anon_inodes.c @@ -35,16 +35,6 @@ static int anon_inodefs_get_sb(struct file_system_type *fs_type, int flags, mnt); } -static int anon_inodefs_delete_dentry(struct dentry *dentry) -{ - /* - * We faked vfs to believe the dentry was hashed when we created it. - * Now we restore the flag so that dput() will work correctly. - */ - dentry->d_flags |= DCACHE_UNHASHED; - return 1; -} - /* * anon_inodefs_dname() is called from d_path(). */ @@ -60,7 +50,6 @@ static struct file_system_type anon_inode_fs_type = { .kill_sb = kill_anon_super, }; static const struct dentry_operations anon_inodefs_dentry_operations = { - .d_delete = anon_inodefs_delete_dentry, .d_dname = anon_inodefs_dname, }; @@ -129,8 +118,6 @@ struct file *anon_inode_getfile(const char *name, atomic_inc(&anon_inode_inode->i_count); path.dentry->d_op = &anon_inodefs_dentry_operations; - /* Do not publish this dentry inside the global dentry hash table */ - path.dentry->d_flags &= ~DCACHE_UNHASHED; d_instantiate(path.dentry, anon_inode_inode); error = -ENFILE; |