[XFS] growlock should be a mutex

m_growlock only needs plain binary mutex semantics, so use a struct mutex
instead of a semaphore for it.

SGI-PV: 968563
SGI-Modid: xfs-linux-melb:xfs-kern:29512a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index 94bd9f2d9d77..c92d5b821029 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -433,10 +433,10 @@ xfs_growfs_data(
         xfs_growfs_data_t       *in)
 {
         int error;
-        if (!cpsema(&mp->m_growlock))
+        if (!mutex_trylock(&mp->m_growlock))
                 return XFS_ERROR(EWOULDBLOCK);
         error = xfs_growfs_data_private(mp, in);
-        vsema(&mp->m_growlock);
+        mutex_unlock(&mp->m_growlock);
         return error;
 }
 
@@ -446,10 +446,10 @@ xfs_growfs_log(
         xfs_growfs_log_t        *in)
 {
         int error;
-        if (!cpsema(&mp->m_growlock))
+        if (!mutex_trylock(&mp->m_growlock))
                 return XFS_ERROR(EWOULDBLOCK);
         error = xfs_growfs_log_private(mp, in);
-        vsema(&mp->m_growlock);
+        mutex_unlock(&mp->m_growlock);
         return error;
 }