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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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4
fs/coda/dir.c
View File

@@ -453,7 +453,7 @@ int coda_readdir(struct file *coda_file, void *dirent, filldir_t filldir)
coda_vfs_stat.readdir++;
host_inode = host_file->f_dentry->d_inode;
down(&host_inode->i_sem);
mutex_lock(&host_inode->i_mutex);
host_file->f_pos = coda_file->f_pos;
if (!host_file->f_op->readdir) {
@@ -475,7 +475,7 @@ int coda_readdir(struct file *coda_file, void *dirent, filldir_t filldir)
}
out:
coda_file->f_pos = host_file->f_pos;
up(&host_inode->i_sem);
mutex_unlock(&host_inode->i_mutex);
return ret;
}

8
fs/coda/file.c
View File

@@ -77,14 +77,14 @@ coda_file_write(struct file *coda_file, const char __user *buf, size_t count, lo
return -EINVAL;
host_inode = host_file->f_dentry->d_inode;
down(&coda_inode->i_sem);
mutex_lock(&coda_inode->i_mutex);
ret = host_file->f_op->write(host_file, buf, count, ppos);
coda_inode->i_size = host_inode->i_size;
coda_inode->i_blocks = (coda_inode->i_size + 511) >> 9;
coda_inode->i_mtime = coda_inode->i_ctime = CURRENT_TIME_SEC;
up(&coda_inode->i_sem);
mutex_unlock(&coda_inode->i_mutex);
return ret;
}
@@ -272,9 +272,9 @@ int coda_fsync(struct file *coda_file, struct dentry *coda_dentry, int datasync)
if (host_file->f_op && host_file->f_op->fsync) {
host_dentry = host_file->f_dentry;
host_inode = host_dentry->d_inode;
down(&host_inode->i_sem);
mutex_lock(&host_inode->i_mutex);
err = host_file->f_op->fsync(host_file, host_dentry, datasync);
up(&host_inode->i_sem);
mutex_unlock(&host_inode->i_mutex);
}
if ( !err && !datasync ) {