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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 /drivers
parent794ee1baee1c26be40410233e6c20bceb2b03c08 (diff)
[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 'drivers')
-rw-r--r--drivers/block/loop.c4
-rw-r--r--drivers/char/mem.c4
-rw-r--r--drivers/isdn/capi/capifs.c6
-rw-r--r--drivers/md/dm.c4
-rw-r--r--drivers/md/md.c8
-rw-r--r--drivers/pci/proc.c4
-rw-r--r--drivers/usb/core/inode.c28
-rw-r--r--drivers/usb/gadget/file_storage.c4
-rw-r--r--drivers/usb/gadget/inode.c4
9 files changed, 33 insertions, 33 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index a452b13620a..bed9ad76c04 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -215,7 +215,7 @@ static int do_lo_send_aops(struct loop_device *lo, struct bio_vec *bvec,
unsigned offset, bv_offs;
int len, ret;
- down(&mapping->host->i_sem);
+ mutex_lock(&mapping->host->i_mutex);
index = pos >> PAGE_CACHE_SHIFT;
offset = pos & ((pgoff_t)PAGE_CACHE_SIZE - 1);
bv_offs = bvec->bv_offset;
@@ -278,7 +278,7 @@ static int do_lo_send_aops(struct loop_device *lo, struct bio_vec *bvec,
}
ret = 0;
out:
- up(&mapping->host->i_sem);
+ mutex_unlock(&mapping->host->i_mutex);
return ret;
unlock:
unlock_page(page);
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 5b2d1803507..704c3c07f0a 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -741,7 +741,7 @@ static loff_t memory_lseek(struct file * file, loff_t offset, int orig)
{
loff_t ret;
- down(&file->f_dentry->d_inode->i_sem);
+ mutex_lock(&file->f_dentry->d_inode->i_mutex);
switch (orig) {
case 0:
file->f_pos = offset;
@@ -756,7 +756,7 @@ static loff_t memory_lseek(struct file * file, loff_t offset, int orig)
default:
ret = -EINVAL;
}
- up(&file->f_dentry->d_inode->i_sem);
+ mutex_unlock(&file->f_dentry->d_inode->i_mutex);
return ret;
}
diff --git a/drivers/isdn/capi/capifs.c b/drivers/isdn/capi/capifs.c
index 207cae36625..0a37aded4b5 100644
--- a/drivers/isdn/capi/capifs.c
+++ b/drivers/isdn/capi/capifs.c
@@ -138,7 +138,7 @@ static struct dentry *get_node(int num)
{
char s[10];
struct dentry *root = capifs_root;
- down(&root->d_inode->i_sem);
+ mutex_lock(&root->d_inode->i_mutex);
return lookup_one_len(s, root, sprintf(s, "%d", num));
}
@@ -159,7 +159,7 @@ void capifs_new_ncci(unsigned int number, dev_t device)
dentry = get_node(number);
if (!IS_ERR(dentry) && !dentry->d_inode)
d_instantiate(dentry, inode);
- up(&capifs_root->d_inode->i_sem);
+ mutex_unlock(&capifs_root->d_inode->i_mutex);
}
void capifs_free_ncci(unsigned int number)
@@ -175,7 +175,7 @@ void capifs_free_ncci(unsigned int number)
}
dput(dentry);
}
- up(&capifs_root->d_inode->i_sem);
+ mutex_unlock(&capifs_root->d_inode->i_mutex);
}
static int __init capifs_init(void)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 0e481512f91..5c210b0a4cb 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -837,9 +837,9 @@ static void __set_size(struct mapped_device *md, sector_t size)
{
set_capacity(md->disk, size);
- down(&md->suspended_bdev->bd_inode->i_sem);
+ mutex_lock(&md->suspended_bdev->bd_inode->i_mutex);
i_size_write(md->suspended_bdev->bd_inode, (loff_t)size << SECTOR_SHIFT);
- up(&md->suspended_bdev->bd_inode->i_sem);
+ mutex_unlock(&md->suspended_bdev->bd_inode->i_mutex);
}
static int __bind(struct mapped_device *md, struct dm_table *t)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index e423a16ba3c..0302723fa21 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3460,9 +3460,9 @@ static int update_size(mddev_t *mddev, unsigned long size)
bdev = bdget_disk(mddev->gendisk, 0);
if (bdev) {
- down(&bdev->bd_inode->i_sem);
+ mutex_lock(&bdev->bd_inode->i_mutex);
i_size_write(bdev->bd_inode, mddev->array_size << 10);
- up(&bdev->bd_inode->i_sem);
+ mutex_unlock(&bdev->bd_inode->i_mutex);
bdput(bdev);
}
}
@@ -3486,9 +3486,9 @@ static int update_raid_disks(mddev_t *mddev, int raid_disks)
bdev = bdget_disk(mddev->gendisk, 0);
if (bdev) {
- down(&bdev->bd_inode->i_sem);
+ mutex_lock(&bdev->bd_inode->i_mutex);
i_size_write(bdev->bd_inode, mddev->array_size << 10);
- up(&bdev->bd_inode->i_sem);
+ mutex_unlock(&bdev->bd_inode->i_mutex);
bdput(bdev);
}
}
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 9eb465727fc..9cb6dd0834b 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -25,7 +25,7 @@ proc_bus_pci_lseek(struct file *file, loff_t off, int whence)
loff_t new = -1;
struct inode *inode = file->f_dentry->d_inode;
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
switch (whence) {
case 0:
new = off;
@@ -41,7 +41,7 @@ proc_bus_pci_lseek(struct file *file, loff_t off, int whence)
new = -EINVAL;
else
file->f_pos = new;
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
return new;
}
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index 4ddc453023a..3cf945cc5b9 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -184,13 +184,13 @@ static void update_bus(struct dentry *bus)
bus->d_inode->i_gid = busgid;
bus->d_inode->i_mode = S_IFDIR | busmode;
- down(&bus->d_inode->i_sem);
+ mutex_lock(&bus->d_inode->i_mutex);
list_for_each_entry(dev, &bus->d_subdirs, d_u.d_child)
if (dev->d_inode)
update_dev(dev);
- up(&bus->d_inode->i_sem);
+ mutex_unlock(&bus->d_inode->i_mutex);
}
static void update_sb(struct super_block *sb)
@@ -201,7 +201,7 @@ static void update_sb(struct super_block *sb)
if (!root)
return;
- down(&root->d_inode->i_sem);
+ mutex_lock(&root->d_inode->i_mutex);
list_for_each_entry(bus, &root->d_subdirs, d_u.d_child) {
if (bus->d_inode) {
@@ -219,7 +219,7 @@ static void update_sb(struct super_block *sb)
}
}
- up(&root->d_inode->i_sem);
+ mutex_unlock(&root->d_inode->i_mutex);
}
static int remount(struct super_block *sb, int *flags, char *data)
@@ -333,10 +333,10 @@ static int usbfs_empty (struct dentry *dentry)
static int usbfs_unlink (struct inode *dir, struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
dentry->d_inode->i_nlink--;
dput(dentry);
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
d_delete(dentry);
return 0;
}
@@ -346,7 +346,7 @@ static int usbfs_rmdir(struct inode *dir, struct dentry *dentry)
int error = -ENOTEMPTY;
struct inode * inode = dentry->d_inode;
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
dentry_unhash(dentry);
if (usbfs_empty(dentry)) {
dentry->d_inode->i_nlink -= 2;
@@ -355,7 +355,7 @@ static int usbfs_rmdir(struct inode *dir, struct dentry *dentry)
dir->i_nlink--;
error = 0;
}
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
if (!error)
d_delete(dentry);
dput(dentry);
@@ -380,7 +380,7 @@ static loff_t default_file_lseek (struct file *file, loff_t offset, int orig)
{
loff_t retval = -EINVAL;
- down(&file->f_dentry->d_inode->i_sem);
+ mutex_lock(&file->f_dentry->d_inode->i_mutex);
switch(orig) {
case 0:
if (offset > 0) {
@@ -397,7 +397,7 @@ static loff_t default_file_lseek (struct file *file, loff_t offset, int orig)
default:
break;
}
- up(&file->f_dentry->d_inode->i_sem);
+ mutex_unlock(&file->f_dentry->d_inode->i_mutex);
return retval;
}
@@ -480,7 +480,7 @@ static int fs_create_by_name (const char *name, mode_t mode,
}
*dentry = NULL;
- down(&parent->d_inode->i_sem);
+ mutex_lock(&parent->d_inode->i_mutex);
*dentry = lookup_one_len(name, parent, strlen(name));
if (!IS_ERR(dentry)) {
if ((mode & S_IFMT) == S_IFDIR)
@@ -489,7 +489,7 @@ static int fs_create_by_name (const char *name, mode_t mode,
error = usbfs_create (parent->d_inode, *dentry, mode);
} else
error = PTR_ERR(dentry);
- up(&parent->d_inode->i_sem);
+ mutex_unlock(&parent->d_inode->i_mutex);
return error;
}
@@ -528,7 +528,7 @@ static void fs_remove_file (struct dentry *dentry)
if (!parent || !parent->d_inode)
return;
- down(&parent->d_inode->i_sem);
+ mutex_lock(&parent->d_inode->i_mutex);
if (usbfs_positive(dentry)) {
if (dentry->d_inode) {
if (S_ISDIR(dentry->d_inode->i_mode))
@@ -538,7 +538,7 @@ static void fs_remove_file (struct dentry *dentry)
dput(dentry);
}
}
- up(&parent->d_inode->i_sem);
+ mutex_unlock(&parent->d_inode->i_mutex);
}
/* --------------------------------------------------------------------- */
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index 0cea9782d7d..de59c58896d 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -1891,7 +1891,7 @@ static int fsync_sub(struct lun *curlun)
return -EINVAL;
inode = filp->f_dentry->d_inode;
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
current->flags |= PF_SYNCWRITE;
rc = filemap_fdatawrite(inode->i_mapping);
err = filp->f_op->fsync(filp, filp->f_dentry, 1);
@@ -1901,7 +1901,7 @@ static int fsync_sub(struct lun *curlun)
if (!rc)
rc = err;
current->flags &= ~PF_SYNCWRITE;
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
VLDBG(curlun, "fdatasync -> %d\n", rc);
return rc;
}
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index 5c40980a5bd..c6c279de832 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -1562,10 +1562,10 @@ restart:
spin_unlock_irq (&dev->lock);
/* break link to dcache */
- down (&parent->i_sem);
+ mutex_lock (&parent->i_mutex);
d_delete (dentry);
dput (dentry);
- up (&parent->i_sem);
+ mutex_unlock (&parent->i_mutex);
/* fds may still be open */
goto restart;