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authorChristoph Hellwig <hch@lst.de>2009-05-11 17:35:03 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-11 21:36:09 -0400
commitebc1ac164560a241d9bf1b7519062910c3f90a01 (patch)
treedb17fd3043b15f8269cce2c2d00213814022fc30 /fs/exofs/super.c
parent01ba687577647beef6c5f2ea59bfb56fac9fcde2 (diff)
->write_super lock_super pushdown
Push down lock_super into ->write_super instances and remove it from the caller. Following filesystem don't need ->s_lock in ->write_super and are skipped: * bfs, nilfs2 - no other uses of s_lock and have internal locks in ->write_super * ext2 - uses BKL in ext2_write_super and has internal calls without s_lock * reiserfs - no other uses of s_lock as has reiserfs_write_lock (BKL) in ->write_super * xfs - no other uses of s_lock and uses internal lock (buffer lock on superblock buffer) to serialize ->write_super. Also xfs_fs_write_super is superflous and will go away in the next merge window Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/exofs/super.c')
-rw-r--r--fs/exofs/super.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index cd1f8b18a218..49e16af4e619 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -214,6 +214,7 @@ static void exofs_write_super(struct super_block *sb)
214 return; 214 return;
215 } 215 }
216 216
217 lock_super(sb);
217 lock_kernel(); 218 lock_kernel();
218 sbi = sb->s_fs_info; 219 sbi = sb->s_fs_info;
219 fscb->s_nextid = cpu_to_le64(sbi->s_nextid); 220 fscb->s_nextid = cpu_to_le64(sbi->s_nextid);
@@ -246,6 +247,7 @@ out:
246 if (or) 247 if (or)
247 osd_end_request(or); 248 osd_end_request(or);
248 unlock_kernel(); 249 unlock_kernel();
250 unlock_super(sb);
249 kfree(fscb); 251 kfree(fscb);
250} 252}
251 253