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| author | Arnd Bergmann <arnd@arndb.de> | 2010-09-16 16:11:09 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2010-10-04 21:10:50 +0200 |
| commit | 1a028dd2dd589c3924d9711a1b073a13c820b6b5 (patch) | |
| tree | e93d344ef2f9f0e318a94e530cdfa1dc208feda5 | |
| parent | 18dfe89d7c394b56e20e06dde8b7a80ff96cf02c (diff) | |
| download | op-kernel-dev-1a028dd2dd589c3924d9711a1b073a13c820b6b5.zip op-kernel-dev-1a028dd2dd589c3924d9711a1b073a13c820b6b5.tar.gz | |
BKL: Remove BKL from jffs2
The BKL is only used in put_super, fill_super and remount_fs that are all
three protected by the superblocks s_umount rw_semaphore. Therefore it is
safe to remove the BKL entirely.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: David Woodhouse <dwmw2@infradead.org>
| -rw-r--r-- | fs/jffs2/fs.c | 4 | ||||
| -rw-r--r-- | fs/jffs2/super.c | 12 |
2 files changed, 1 insertions, 15 deletions
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index 6b2964a..d9beb06 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c @@ -21,7 +21,6 @@ #include <linux/vmalloc.h> #include <linux/vfs.h> #include <linux/crc32.h> -#include <linux/smp_lock.h> #include "nodelist.h" static int jffs2_flash_setup(struct jffs2_sb_info *c); @@ -391,7 +390,6 @@ int jffs2_remount_fs (struct super_block *sb, int *flags, char *data) This also catches the case where it was stopped and this is just a remount to restart it. Flush the writebuffer, if neccecary, else we loose it */ - lock_kernel(); if (!(sb->s_flags & MS_RDONLY)) { jffs2_stop_garbage_collect_thread(c); mutex_lock(&c->alloc_sem); @@ -403,8 +401,6 @@ int jffs2_remount_fs (struct super_block *sb, int *flags, char *data) jffs2_start_garbage_collect_thread(c); *flags |= MS_NOATIME; - - unlock_kernel(); return 0; } diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c index 58dd9cf..d1ae5df 100644 --- a/fs/jffs2/super.c +++ b/fs/jffs2/super.c @@ -12,7 +12,6 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> -#include <linux/smp_lock.h> #include <linux/init.h> #include <linux/list.h> #include <linux/fs.h> @@ -148,17 +147,13 @@ static int jffs2_fill_super(struct super_block *sb, void *data, int silent) struct jffs2_sb_info *c; int ret; - lock_kernel(); - D1(printk(KERN_DEBUG "jffs2_get_sb_mtd():" " New superblock for device %d (\"%s\")\n", sb->s_mtd->index, sb->s_mtd->name)); c = kzalloc(sizeof(*c), GFP_KERNEL); - if (!c) { - unlock_kernel(); + if (!c) return -ENOMEM; - } c->mtd = sb->s_mtd; c->os_priv = sb; @@ -181,7 +176,6 @@ static int jffs2_fill_super(struct super_block *sb, void *data, int silent) sb->s_flags |= MS_POSIXACL; #endif ret = jffs2_do_fill_super(sb, data, silent); - unlock_kernel(); return ret; } @@ -199,8 +193,6 @@ static void jffs2_put_super (struct super_block *sb) D2(printk(KERN_DEBUG "jffs2: jffs2_put_super()\n")); - lock_kernel(); - if (sb->s_dirt) jffs2_write_super(sb); @@ -222,8 +214,6 @@ static void jffs2_put_super (struct super_block *sb) if (c->mtd->sync) c->mtd->sync(c->mtd); - unlock_kernel(); - D1(printk(KERN_DEBUG "jffs2_put_super returning\n")); } |
