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author | Jan Blunck <jblunck@infradead.org> | 2010-02-24 13:25:33 +0100 |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2010-10-04 21:10:41 +0200 |
commit | efdffb54034a6fc96bc7fafa33ca2a5503113eee (patch) | |
tree | 6e69acdf0d626e04a182b568fdc5f084f06d9d5f /fs/ntfs | |
parent | d6d4c19c5f9ac5972e30e89b3c81ad1fd6e11fee (diff) | |
download | kernel_samsung_tuna-efdffb54034a6fc96bc7fafa33ca2a5503113eee.zip kernel_samsung_tuna-efdffb54034a6fc96bc7fafa33ca2a5503113eee.tar.gz kernel_samsung_tuna-efdffb54034a6fc96bc7fafa33ca2a5503113eee.tar.bz2 |
BKL: Remove BKL from NTFS
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: Jan Blunck <jblunck@infradead.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'fs/ntfs')
-rw-r--r-- | fs/ntfs/super.c | 29 |
1 files changed, 2 insertions, 27 deletions
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c index 1f31e77..19c5180 100644 --- a/fs/ntfs/super.c +++ b/fs/ntfs/super.c @@ -30,7 +30,6 @@ #include <linux/buffer_head.h> #include <linux/vfs.h> #include <linux/moduleparam.h> -#include <linux/smp_lock.h> #include <linux/bitmap.h> #include "sysctl.h" @@ -445,7 +444,6 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt) ntfs_debug("Entering with remount options string: %s", opt); - lock_kernel(); #ifndef NTFS_RW /* For read-only compiled driver, enforce read-only flag. */ *flags |= MS_RDONLY; @@ -469,18 +467,15 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt) if (NVolErrors(vol)) { ntfs_error(sb, "Volume has errors and is read-only%s", es); - unlock_kernel(); return -EROFS; } if (vol->vol_flags & VOLUME_IS_DIRTY) { ntfs_error(sb, "Volume is dirty and read-only%s", es); - unlock_kernel(); return -EROFS; } if (vol->vol_flags & VOLUME_MODIFIED_BY_CHKDSK) { ntfs_error(sb, "Volume has been modified by chkdsk " "and is read-only%s", es); - unlock_kernel(); return -EROFS; } if (vol->vol_flags & VOLUME_MUST_MOUNT_RO_MASK) { @@ -488,13 +483,11 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt) "(0x%x) and is read-only%s", (unsigned)le16_to_cpu(vol->vol_flags), es); - unlock_kernel(); return -EROFS; } if (ntfs_set_volume_flags(vol, VOLUME_IS_DIRTY)) { ntfs_error(sb, "Failed to set dirty bit in volume " "information flags%s", es); - unlock_kernel(); return -EROFS; } #if 0 @@ -514,21 +507,18 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt) ntfs_error(sb, "Failed to empty journal $LogFile%s", es); NVolSetErrors(vol); - unlock_kernel(); return -EROFS; } if (!ntfs_mark_quotas_out_of_date(vol)) { ntfs_error(sb, "Failed to mark quotas out of date%s", es); NVolSetErrors(vol); - unlock_kernel(); return -EROFS; } if (!ntfs_stamp_usnjrnl(vol)) { ntfs_error(sb, "Failed to stamp transation log " "($UsnJrnl)%s", es); NVolSetErrors(vol); - unlock_kernel(); return -EROFS; } } else if (!(sb->s_flags & MS_RDONLY) && (*flags & MS_RDONLY)) { @@ -544,11 +534,9 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt) // TODO: Deal with *flags. - if (!parse_options(vol, opt)) { - unlock_kernel(); + if (!parse_options(vol, opt)) return -EINVAL; - } - unlock_kernel(); + ntfs_debug("Done."); return 0; } @@ -2261,8 +2249,6 @@ static void ntfs_put_super(struct super_block *sb) ntfs_debug("Entering."); - lock_kernel(); - #ifdef NTFS_RW /* * Commit all inodes while they are still open in case some of them @@ -2433,8 +2419,6 @@ static void ntfs_put_super(struct super_block *sb) sb->s_fs_info = NULL; kfree(vol); - - unlock_kernel(); } /** @@ -2732,8 +2716,6 @@ static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent) struct inode *tmp_ino; int blocksize, result; - lock_kernel(); - /* * We do a pretty difficult piece of bootstrap by reading the * MFT (and other metadata) from disk into memory. We'll only @@ -2757,7 +2739,6 @@ static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent) ntfs_error(sb, "Allocation of NTFS volume structure " "failed. Aborting mount..."); lockdep_on(); - unlock_kernel(); return -ENOMEM; } /* Initialize ntfs_volume structure. */ @@ -2775,8 +2756,6 @@ static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent) init_rwsem(&vol->mftbmp_lock); init_rwsem(&vol->lcnbmp_lock); - unlock_kernel(); - /* By default, enable sparse support. */ NVolSetSparseEnabled(vol); @@ -2943,9 +2922,7 @@ static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent) } mutex_unlock(&ntfs_lock); sb->s_export_op = &ntfs_export_ops; - lock_kernel(); lockdep_on(); - unlock_kernel(); return 0; } ntfs_error(sb, "Failed to allocate root directory."); @@ -3061,12 +3038,10 @@ iput_tmp_ino_err_out_now: } /* Errors at this stage are irrelevant. */ err_out_now: - lock_kernel(); sb->s_fs_info = NULL; kfree(vol); ntfs_debug("Failed, returning -EINVAL."); lockdep_on(); - unlock_kernel(); return -EINVAL; } |