From 1b1dcc1b57a49136f118a0f16367256ff9994a69 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Mon, 9 Jan 2006 15:59:24 -0800 Subject: [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 (finished the conversion) Signed-off-by: Jes Sorensen Signed-off-by: Ingo Molnar --- fs/ntfs/file.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'fs/ntfs/file.c') diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c index 7275338..30f71ac 100644 --- a/fs/ntfs/file.c +++ b/fs/ntfs/file.c @@ -106,7 +106,7 @@ static int ntfs_file_open(struct inode *vi, struct file *filp) * this is the case, the necessary zeroing will also have happened and that all * metadata is self-consistent. * - * Locking: i_sem on the vfs inode corrseponsind to the ntfs inode @ni must be + * Locking: i_mutex on the vfs inode corrseponsind to the ntfs inode @ni must be * held by the caller. */ static int ntfs_attr_extend_initialized(ntfs_inode *ni, const s64 new_init_size, @@ -473,7 +473,7 @@ static inline int ntfs_submit_bh_for_read(struct buffer_head *bh) * @bytes: number of bytes to be written * * This is called for non-resident attributes from ntfs_file_buffered_write() - * with i_sem held on the inode (@pages[0]->mapping->host). There are + * with i_mutex held on the inode (@pages[0]->mapping->host). There are * @nr_pages pages in @pages which are locked but not kmap()ped. The source * data has not yet been copied into the @pages. * @@ -1637,7 +1637,7 @@ err_out: * @pos: byte position in file at which the write begins * @bytes: number of bytes to be written * - * This is called from ntfs_file_buffered_write() with i_sem held on the inode + * This is called from ntfs_file_buffered_write() with i_mutex held on the inode * (@pages[0]->mapping->host). There are @nr_pages pages in @pages which are * locked but not kmap()ped. The source data has already been copied into the * @page. ntfs_prepare_pages_for_non_resident_write() has been called before @@ -1814,7 +1814,7 @@ err_out: /** * ntfs_file_buffered_write - * - * Locking: The vfs is holding ->i_sem on the inode. + * Locking: The vfs is holding ->i_mutex on the inode. */ static ssize_t ntfs_file_buffered_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, @@ -2196,9 +2196,9 @@ static ssize_t ntfs_file_aio_write(struct kiocb *iocb, const char __user *buf, BUG_ON(iocb->ki_pos != pos); - down(&inode->i_sem); + mutex_lock(&inode->i_mutex); ret = ntfs_file_aio_write_nolock(iocb, &local_iov, 1, &iocb->ki_pos); - up(&inode->i_sem); + mutex_unlock(&inode->i_mutex); if (ret > 0 && ((file->f_flags & O_SYNC) || IS_SYNC(inode))) { int err = sync_page_range(inode, mapping, pos, ret); if (err < 0) @@ -2221,12 +2221,12 @@ static ssize_t ntfs_file_writev(struct file *file, const struct iovec *iov, struct kiocb kiocb; ssize_t ret; - down(&inode->i_sem); + mutex_lock(&inode->i_mutex); init_sync_kiocb(&kiocb, file); ret = ntfs_file_aio_write_nolock(&kiocb, iov, nr_segs, ppos); if (ret == -EIOCBQUEUED) ret = wait_on_sync_kiocb(&kiocb); - up(&inode->i_sem); + mutex_unlock(&inode->i_mutex); if (ret > 0 && ((file->f_flags & O_SYNC) || IS_SYNC(inode))) { int err = sync_page_range(inode, mapping, *ppos - ret, ret); if (err < 0) @@ -2269,7 +2269,7 @@ static ssize_t ntfs_file_write(struct file *file, const char __user *buf, * Note: In the past @filp could be NULL so we ignore it as we don't need it * anyway. * - * Locking: Caller must hold i_sem on the inode. + * Locking: Caller must hold i_mutex on the inode. * * TODO: We should probably also write all attribute/index inodes associated * with this inode but since we have no simple way of getting to them we ignore -- cgit v1.1