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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/open.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/open.c')
-rw-r--r--fs/open.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/fs/open.c b/fs/open.c
index 75f3329..a3b3a9b 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -211,9 +211,9 @@ int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
newattrs.ia_valid |= ATTR_FILE;
}
- down(&dentry->d_inode->i_sem);
+ mutex_lock(&dentry->d_inode->i_mutex);
err = notify_change(dentry, &newattrs);
- up(&dentry->d_inode->i_sem);
+ mutex_unlock(&dentry->d_inode->i_mutex);
return err;
}
@@ -398,9 +398,9 @@ asmlinkage long sys_utime(char __user * filename, struct utimbuf __user * times)
(error = vfs_permission(&nd, MAY_WRITE)) != 0)
goto dput_and_out;
}
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
error = notify_change(nd.dentry, &newattrs);
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
dput_and_out:
path_release(&nd);
out:
@@ -451,9 +451,9 @@ long do_utimes(char __user * filename, struct timeval * times)
(error = vfs_permission(&nd, MAY_WRITE)) != 0)
goto dput_and_out;
}
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
error = notify_change(nd.dentry, &newattrs);
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
dput_and_out:
path_release(&nd);
out:
@@ -620,13 +620,13 @@ asmlinkage long sys_fchmod(unsigned int fd, mode_t mode)
err = -EPERM;
if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
goto out_putf;
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
if (mode == (mode_t) -1)
mode = inode->i_mode;
newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
err = notify_change(dentry, &newattrs);
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
out_putf:
fput(file);
@@ -654,13 +654,13 @@ asmlinkage long sys_chmod(const char __user * filename, mode_t mode)
if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
goto dput_and_out;
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
if (mode == (mode_t) -1)
mode = inode->i_mode;
newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
error = notify_change(nd.dentry, &newattrs);
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
dput_and_out:
path_release(&nd);
@@ -696,9 +696,9 @@ static int chown_common(struct dentry * dentry, uid_t user, gid_t group)
}
if (!S_ISDIR(inode->i_mode))
newattrs.ia_valid |= ATTR_KILL_SUID|ATTR_KILL_SGID;
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
error = notify_change(dentry, &newattrs);
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
out:
return error;
}
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