[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.
Modified-by: Ingo Molnar <mingo@elte.hu>
(finished the conversion)
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c
index 3ac3826..9ed132c 100644
--- a/fs/ext3/acl.c
+++ b/fs/ext3/acl.c
@@ -152,7 +152,7 @@
/*
* Inode operation get_posix_acl().
*
- * inode->i_sem: don't care
+ * inode->i_mutex: don't care
*/
static struct posix_acl *
ext3_get_acl(struct inode *inode, int type)
@@ -216,7 +216,7 @@
/*
* Set the access or default ACL of an inode.
*
- * inode->i_sem: down unless called from ext3_new_inode
+ * inode->i_mutex: down unless called from ext3_new_inode
*/
static int
ext3_set_acl(handle_t *handle, struct inode *inode, int type,
@@ -306,8 +306,8 @@
/*
* Initialize the ACLs of a new inode. Called from ext3_new_inode.
*
- * dir->i_sem: down
- * inode->i_sem: up (access to inode is still exclusive)
+ * dir->i_mutex: down
+ * inode->i_mutex: up (access to inode is still exclusive)
*/
int
ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
@@ -368,7 +368,7 @@
* for directories) are added. There are no more bits available in the
* file mode.
*
- * inode->i_sem: down
+ * inode->i_mutex: down
*/
int
ext3_acl_chmod(struct inode *inode)
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 7c45acf..c3dbebd 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -2601,7 +2601,7 @@
struct buffer_head *bh;
handle_t *handle = journal_current_handle();
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
while (towrite > 0) {
tocopy = sb->s_blocksize - offset < towrite ?
sb->s_blocksize - offset : towrite;
@@ -2644,7 +2644,7 @@
inode->i_version++;
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
ext3_mark_inode_dirty(handle, inode);
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
return len - towrite;
}
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
index 430de9f..238199d 100644
--- a/fs/ext3/xattr.c
+++ b/fs/ext3/xattr.c
@@ -140,7 +140,7 @@
/*
* Inode operation listxattr()
*
- * dentry->d_inode->i_sem: don't care
+ * dentry->d_inode->i_mutex: don't care
*/
ssize_t
ext3_listxattr(struct dentry *dentry, char *buffer, size_t size)