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| author | Takashi Iwai <tiwai@suse.de> | 2009-01-17 12:01:12 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-01-17 12:01:12 +0100 |
| commit | d1a020050c6ce1a0794ff73582ccf47e4db536f7 (patch) | |
| tree | 1b7250410f24703cd77c76156e758db9887137aa /fs/filesystems.c | |
| parent | dc61b66fc724f89d357c43e2319d2cb7bec1e517 (diff) | |
| parent | 641b4879444c0edb276fedca5c2fcbd2e5c70044 (diff) | |
| download | lwn-d1a020050c6ce1a0794ff73582ccf47e4db536f7.tar.gz lwn-d1a020050c6ce1a0794ff73582ccf47e4db536f7.zip | |
Merge branch 'topic/usb-mixer-cache' into next/usb-audio
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 d0e20ced62dd..d488dcd7f2bb 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); |