From: Jan Blunck Date: Wed, 14 Apr 2010 12:38:39 +0000 (+0200) Subject: BKL: Remove BKL from ext2 filesystem X-Git-Tag: v2.6.35-rc1~455^2~19 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0a5cbac029db69032758000c67465c2ed7a5736;p=pandora-kernel.git BKL: Remove BKL from ext2 filesystem The BKL is still used in ext2_put_super(), ext2_fill_super(), ext2_sync_fs() ext2_remount() and ext2_write_inode(). From these calls ext2_put_super(), ext2_fill_super() and ext2_remount() are protected against each other by the struct super_block s_umount rw semaphore. The call in ext2_write_inode() could only protect the modification of the ext2_sb_info through ext2_update_dynamic_rev() against concurrent ext2_sync_fs() or ext2_remount(). ext2_fill_super() and ext2_put_super() can be left out because you need a valid filesystem reference in all three cases, which you do not have when you are one of these functions. If the BKL is only protecting the modification of the ext2_sb_info it can safely be removed since this is protected by the struct ext2_sb_info s_lock. Signed-off-by: Jan Blunck Cc: Jan Kara Signed-off-by: Jan Kara --- Reading git-diff-tree failed