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[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem

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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>
This commit is contained in:
Jes Sorensen
2006-01-09 15:59:24 -08:00
committed by Ingo Molnar
parent 794ee1baee
commit 1b1dcc1b57
113 changed files with 563 additions and 573 deletions
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8
fs/libfs.c
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@@ -74,7 +74,7 @@ int dcache_dir_close(struct inode *inode, struct file *file)
loff_t dcache_dir_lseek(struct file *file, loff_t offset, int origin)
{
down(&file->f_dentry->d_inode->i_sem);
mutex_lock(&file->f_dentry->d_inode->i_mutex);
switch (origin) {
case 1:
offset += file->f_pos;
@@ -82,7 +82,7 @@ loff_t dcache_dir_lseek(struct file *file, loff_t offset, int origin)
if (offset >= 0)
break;
default:
up(&file->f_dentry->d_inode->i_sem);
mutex_unlock(&file->f_dentry->d_inode->i_mutex);
return -EINVAL;
}
if (offset != file->f_pos) {
@@ -106,7 +106,7 @@ loff_t dcache_dir_lseek(struct file *file, loff_t offset, int origin)
spin_unlock(&dcache_lock);
}
}
up(&file->f_dentry->d_inode->i_sem);
mutex_unlock(&file->f_dentry->d_inode->i_mutex);
return offset;
}
@@ -356,7 +356,7 @@ int simple_commit_write(struct file *file, struct page *page,
/*
* No need to use i_size_read() here, the i_size
* cannot change under us because we hold the i_sem.
* cannot change under us because we hold the i_mutex.
*/
if (pos > inode->i_size)
i_size_write(inode, pos);