diff options
| author | Christoph Hellwig <hch@lst.de> | 2009-05-05 15:40:36 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-06-11 21:36:07 -0400 |
| commit | 6cfd0148425e528b859b26e436b01f23f6926224 (patch) | |
| tree | 60e3257053554ff198fe5825e6f12a00c3b4422a /fs/ecryptfs/super.c | |
| parent | a9e220f8322e2b0e0b8903fe00265461cffad3f0 (diff) | |
| download | lwn-6cfd0148425e528b859b26e436b01f23f6926224.tar.gz lwn-6cfd0148425e528b859b26e436b01f23f6926224.zip | |
push BKL down into ->put_super
Move BKL into ->put_super from the only caller. A couple of
filesystems had trivial enough ->put_super (only kfree and NULLing of
s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs,
hugetlbfs, omfs, qnx4, shmem, all others got the full treatment. Most
of them probably don't need it, but I'd rather sort that out individually.
Preferably after all the other BKL pushdowns in that area.
[AV: original used to move lock_super() down as well; these changes are
removed since we don't do lock_super() at all in generic_shutdown_super()
now]
[AV: fuse, btrfs and xfs are known to need no damn BKL, exempt]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/ecryptfs/super.c')
| -rw-r--r-- | fs/ecryptfs/super.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c index fa4c7e7d15d9..12d649602d3a 100644 --- a/fs/ecryptfs/super.c +++ b/fs/ecryptfs/super.c @@ -27,6 +27,7 @@ #include <linux/mount.h> #include <linux/key.h> #include <linux/seq_file.h> +#include <linux/smp_lock.h> #include <linux/file.h> #include <linux/crypto.h> #include "ecryptfs_kernel.h" @@ -120,9 +121,13 @@ static void ecryptfs_put_super(struct super_block *sb) { struct ecryptfs_sb_info *sb_info = ecryptfs_superblock_to_private(sb); + lock_kernel(); + ecryptfs_destroy_mount_crypt_stat(&sb_info->mount_crypt_stat); kmem_cache_free(ecryptfs_sb_info_cache, sb_info); ecryptfs_set_superblock_private(sb, NULL); + + unlock_kernel(); } /** |