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authorJes Sorensen <jes@sgi.com>2006-01-09 15:59:24 -0800
committerIngo Molnar <mingo@hera.kernel.org>2006-01-09 15:59:24 -0800
commit1b1dcc1b57a49136f118a0f16367256ff9994a69 (patch)
treeb0b36d4f41d28c9d6514fb309d33c1a084d6309b /fs/buffer.c
parent794ee1baee1c26be40410233e6c20bceb2b03c08 (diff)
downloadop-kernel-dev-1b1dcc1b57a49136f118a0f16367256ff9994a69.zip
op-kernel-dev-1b1dcc1b57a49136f118a0f16367256ff9994a69.tar.gz
[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>
Diffstat (limited to 'fs/buffer.c')
-rw-r--r--fs/buffer.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index 55f0975a..6466bc8a 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -352,11 +352,11 @@ static long do_fsync(unsigned int fd, int datasync)
* We need to protect against concurrent writers,
* which could cause livelocks in fsync_buffers_list
*/
- down(&mapping->host->i_sem);
+ mutex_lock(&mapping->host->i_mutex);
err = file->f_op->fsync(file, file->f_dentry, datasync);
if (!ret)
ret = err;
- up(&mapping->host->i_sem);
+ mutex_unlock(&mapping->host->i_mutex);
err = filemap_fdatawait(mapping);
if (!ret)
ret = err;
@@ -2338,7 +2338,7 @@ int generic_commit_write(struct file *file, struct page *page,
__block_commit_write(inode,page,from,to);
/*
* No need to use i_size_read() here, the i_size
- * cannot change under us because we hold i_sem.
+ * cannot change under us because we hold i_mutex.
*/
if (pos > inode->i_size) {
i_size_write(inode, pos);
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