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| author | Alessio Igor Bogani <abogani@texware.it> | 2009-05-12 15:10:54 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-06-11 21:36:11 -0400 |
| commit | 337eb00a2c3a421999c39c94ce7e33545ee8baa7 (patch) | |
| tree | d9b780d095b638b1d8fa23841ff70347cf5daa08 /fs/jfs | |
| parent | 4195f73d1329e49727bcceb028e58cb38376c2b0 (diff) | |
| download | linux-337eb00a2c3a421999c39c94ce7e33545ee8baa7.tar.gz linux-337eb00a2c3a421999c39c94ce7e33545ee8baa7.tar.bz2 linux-337eb00a2c3a421999c39c94ce7e33545ee8baa7.zip | |
Push BKL down into ->remount_fs()
[xfs, btrfs, capifs, shmem don't need BKL, exempt]
Signed-off-by: Alessio Igor Bogani <abogani@texware.it>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/jfs')
| -rw-r--r-- | fs/jfs/super.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/fs/jfs/super.c b/fs/jfs/super.c index 3eb13adf3862..09b1b6ee2186 100644 --- a/fs/jfs/super.c +++ b/fs/jfs/super.c @@ -32,6 +32,7 @@ #include <linux/crc32.h> #include <asm/uaccess.h> #include <linux/seq_file.h> +#include <linux/smp_lock.h> #include "jfs_incore.h" #include "jfs_filsys.h" @@ -375,19 +376,24 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data) s64 newLVSize = 0; int rc = 0; int flag = JFS_SBI(sb)->flag; + int ret; if (!parse_options(data, sb, &newLVSize, &flag)) { return -EINVAL; } + lock_kernel(); if (newLVSize) { if (sb->s_flags & MS_RDONLY) { printk(KERN_ERR "JFS: resize requires volume to be mounted read-write\n"); + unlock_kernel(); return -EROFS; } rc = jfs_extendfs(sb, newLVSize, 0); - if (rc) + if (rc) { + unlock_kernel(); return rc; + } } if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) { @@ -398,23 +404,31 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data) truncate_inode_pages(JFS_SBI(sb)->direct_inode->i_mapping, 0); JFS_SBI(sb)->flag = flag; - return jfs_mount_rw(sb, 1); + ret = jfs_mount_rw(sb, 1); + unlock_kernel(); + return ret; } if ((!(sb->s_flags & MS_RDONLY)) && (*flags & MS_RDONLY)) { rc = jfs_umount_rw(sb); JFS_SBI(sb)->flag = flag; + unlock_kernel(); return rc; } if ((JFS_SBI(sb)->flag & JFS_NOINTEGRITY) != (flag & JFS_NOINTEGRITY)) if (!(sb->s_flags & MS_RDONLY)) { rc = jfs_umount_rw(sb); - if (rc) + if (rc) { + unlock_kernel(); return rc; + } JFS_SBI(sb)->flag = flag; - return jfs_mount_rw(sb, 1); + ret = jfs_mount_rw(sb, 1); + unlock_kernel(); + return ret; } JFS_SBI(sb)->flag = flag; + unlock_kernel(); return 0; } |