diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-05 18:32:06 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-05 18:32:06 -0800 |
commit | 520c85346666d4d9a6fcaaa8450542302dc28b91 (patch) | |
tree | 9c9cc9e2493b606104dd8602302ae28258ebeac0 /fs/filesystems.c | |
parent | e8c82c2e23e3527e0c9dc195e432c16784d270fa (diff) | |
parent | 4ae8978cf92a96257cd8998a49e781be83571d64 (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
inotify: fix type errors in interfaces
fix breakage in reiserfs_new_inode()
fix the treatment of jfs special inodes
vfs: remove duplicate code in get_fs_type()
add a vfs_fsync helper
sys_execve and sys_uselib do not call into fsnotify
zero i_uid/i_gid on inode allocation
inode->i_op is never NULL
ntfs: don't NULL i_op
isofs check for NULL ->i_op in root directory is dead code
affs: do not zero ->i_op
kill suid bit only for regular files
vfs: lseek(fd, 0, SEEK_CUR) race condition
Diffstat (limited to 'fs/filesystems.c')
-rw-r--r-- | fs/filesystems.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/fs/filesystems.c b/fs/filesystems.c index d0e20ced62d..d488dcd7f2b 100644 --- a/fs/filesystems.c +++ b/fs/filesystems.c @@ -253,24 +253,27 @@ static int __init proc_filesystems_init(void) module_init(proc_filesystems_init); #endif -struct file_system_type *get_fs_type(const char *name) +static struct file_system_type *__get_fs_type(const char *name, int len) { struct file_system_type *fs; - const char *dot = strchr(name, '.'); - unsigned len = dot ? dot - name : strlen(name); read_lock(&file_systems_lock); fs = *(find_filesystem(name, len)); if (fs && !try_module_get(fs->owner)) fs = NULL; read_unlock(&file_systems_lock); - if (!fs && (request_module("%.*s", len, name) == 0)) { - read_lock(&file_systems_lock); - fs = *(find_filesystem(name, len)); - if (fs && !try_module_get(fs->owner)) - fs = NULL; - read_unlock(&file_systems_lock); - } + return fs; +} + +struct file_system_type *get_fs_type(const char *name) +{ + struct file_system_type *fs; + const char *dot = strchr(name, '.'); + int len = dot ? dot - name : strlen(name); + + fs = __get_fs_type(name, len); + if (!fs && (request_module("%.*s", len, name) == 0)) + fs = __get_fs_type(name, len); if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) { put_filesystem(fs); |