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| author | Arnd Bergmann <arnd@arndb.de> | 2011-01-22 20:05:05 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-03-02 00:02:38 +0100 |
| commit | 4688a066ecf60086ea82f68edb3b036b567d2c08 (patch) | |
| tree | e1a4b93e5b5084adfbf78c83de32dc590959fe14 /fs/adfs/dir.c | |
| parent | f5412be599602124d2bdd49947b231dd77c0bf99 (diff) | |
| download | talos-obmc-linux-4688a066ecf60086ea82f68edb3b036b567d2c08.tar.gz talos-obmc-linux-4688a066ecf60086ea82f68edb3b036b567d2c08.zip | |
adfs: remove the big kernel lock
According to Russell King, adfs was written to not require the big
kernel lock, and all inode updates are done under adfs_dir_lock.
All other metadata in adfs is read-only and does not require locking.
The use of the BKL is the result of various pushdowns from the VFS
operations.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Stuart Swales <stuart.swales.croftnuisk@gmail.com>
Diffstat (limited to 'fs/adfs/dir.c')
| -rw-r--r-- | fs/adfs/dir.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c index 3b4a764ed780..3d83075aaa2e 100644 --- a/fs/adfs/dir.c +++ b/fs/adfs/dir.c @@ -9,7 +9,6 @@ * * Common directory handling for ADFS */ -#include <linux/smp_lock.h> #include "adfs.h" /* @@ -27,8 +26,6 @@ adfs_readdir(struct file *filp, void *dirent, filldir_t filldir) struct adfs_dir dir; int ret = 0; - lock_kernel(); - if (filp->f_pos >> 32) goto out; @@ -70,7 +67,6 @@ free_out: ops->free(&dir); out: - unlock_kernel(); return ret; } @@ -276,7 +272,6 @@ adfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) struct object_info obj; int error; - lock_kernel(); error = adfs_dir_lookup_byname(dir, &dentry->d_name, &obj); if (error == 0) { error = -EACCES; @@ -288,7 +283,6 @@ adfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) if (inode) error = 0; } - unlock_kernel(); d_add(dentry, inode); return ERR_PTR(error); } |
