[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>

2 files changed, 6 insertions, 6 deletions

diff --git a/fs/hfsplus/bitmap.c b/fs/hfsplus/bitmap.c
index c7d316455fa0..9fb51632303c 100644
--- a/fs/hfsplus/bitmap.c
+++ b/fs/hfsplus/bitmap.c
@@ -29,7 +29,7 @@ int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset, u32 *ma
                 return size;
 
         dprint(DBG_BITMAP, "block_allocate: %u,%u,%u\n", size, offset, len);
-        down(&HFSPLUS_SB(sb).alloc_file->i_sem);
+        mutex_lock(&HFSPLUS_SB(sb).alloc_file->i_mutex);
         mapping = HFSPLUS_SB(sb).alloc_file->i_mapping;
         page = read_cache_page(mapping, offset / PAGE_CACHE_BITS,
                                (filler_t *)mapping->a_ops->readpage, NULL);
@@ -143,7 +143,7 @@ done:
         sb->s_dirt = 1;
         dprint(DBG_BITMAP, "-> %u,%u\n", start, *max);
 out:
-        up(&HFSPLUS_SB(sb).alloc_file->i_sem);
+        mutex_unlock(&HFSPLUS_SB(sb).alloc_file->i_mutex);
         return start;
 }
 
@@ -164,7 +164,7 @@ int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count)
         if ((offset + count) > HFSPLUS_SB(sb).total_blocks)
                 return -2;
 
-        down(&HFSPLUS_SB(sb).alloc_file->i_sem);
+        mutex_lock(&HFSPLUS_SB(sb).alloc_file->i_mutex);
         mapping = HFSPLUS_SB(sb).alloc_file->i_mapping;
         pnr = offset / PAGE_CACHE_BITS;
         page = read_cache_page(mapping, pnr, (filler_t *)mapping->a_ops->readpage, NULL);
@@ -215,7 +215,7 @@ out:
         kunmap(page);
         HFSPLUS_SB(sb).free_blocks += len;
         sb->s_dirt = 1;
-        up(&HFSPLUS_SB(sb).alloc_file->i_sem);
+        mutex_unlock(&HFSPLUS_SB(sb).alloc_file->i_mutex);
 
         return 0;
 }
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index fc98583cf045..983bcd02ac1c 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -276,13 +276,13 @@ static int hfsplus_file_release(struct inode *inode, struct file *file)
         if (atomic_read(&file->f_count) != 0)
                 return 0;
         if (atomic_dec_and_test(&HFSPLUS_I(inode).opencnt)) {
-                down(&inode->i_sem);
+                mutex_lock(&inode->i_mutex);
                 hfsplus_file_truncate(inode);
                 if (inode->i_flags & S_DEAD) {
                         hfsplus_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
                         hfsplus_delete_inode(inode);
                 }
-                up(&inode->i_sem);
+                mutex_unlock(&inode->i_mutex);
         }
         return 0;
 }