summaryrefslogtreecommitdiffstats
path: root/fs/ufs/inode.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ufs/inode.c')
-rw-r--r--fs/ufs/inode.c78
1 files changed, 21 insertions, 57 deletions
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index 2b251f2..03c255f 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -34,7 +34,6 @@
#include <linux/stat.h>
#include <linux/string.h>
#include <linux/mm.h>
-#include <linux/smp_lock.h>
#include <linux/buffer_head.h>
#include <linux/writeback.h>
@@ -43,7 +42,7 @@
#include "swab.h"
#include "util.h"
-static u64 ufs_frag_map(struct inode *inode, sector_t frag);
+static u64 ufs_frag_map(struct inode *inode, sector_t frag, bool needs_lock);
static int ufs_block_to_path(struct inode *inode, sector_t i_block, sector_t offsets[4])
{
@@ -82,7 +81,7 @@ static int ufs_block_to_path(struct inode *inode, sector_t i_block, sector_t off
* the begining of the filesystem.
*/
-static u64 ufs_frag_map(struct inode *inode, sector_t frag)
+static u64 ufs_frag_map(struct inode *inode, sector_t frag, bool needs_lock)
{
struct ufs_inode_info *ufsi = UFS_I(inode);
struct super_block *sb = inode->i_sb;
@@ -107,7 +106,8 @@ static u64 ufs_frag_map(struct inode *inode, sector_t frag)
p = offsets;
- lock_kernel();
+ if (needs_lock)
+ lock_ufs(sb);
if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
goto ufs2;
@@ -152,7 +152,8 @@ ufs2:
ret = temp + (u64) (frag & uspi->s_fpbmask);
out:
- unlock_kernel();
+ if (needs_lock)
+ unlock_ufs(sb);
return ret;
}
@@ -415,14 +416,16 @@ out:
int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create)
{
struct super_block * sb = inode->i_sb;
- struct ufs_sb_private_info * uspi = UFS_SB(sb)->s_uspi;
+ struct ufs_sb_info * sbi = UFS_SB(sb);
+ struct ufs_sb_private_info * uspi = sbi->s_uspi;
struct buffer_head * bh;
int ret, err, new;
unsigned long ptr,phys;
u64 phys64 = 0;
+ bool needs_lock = (sbi->mutex_owner != current);
if (!create) {
- phys64 = ufs_frag_map(inode, fragment);
+ phys64 = ufs_frag_map(inode, fragment, needs_lock);
UFSD("phys64 = %llu\n", (unsigned long long)phys64);
if (phys64)
map_bh(bh_result, sb, phys64);
@@ -436,7 +439,8 @@ int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head
ret = 0;
bh = NULL;
- lock_kernel();
+ if (needs_lock)
+ lock_ufs(sb);
UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment);
if (fragment >
@@ -498,7 +502,9 @@ out:
set_buffer_new(bh_result);
map_bh(bh_result, sb, phys);
abort:
- unlock_kernel();
+ if (needs_lock)
+ unlock_ufs(sb);
+
return err;
abort_too_big:
@@ -506,48 +512,6 @@ abort_too_big:
goto abort;
}
-static struct buffer_head *ufs_getfrag(struct inode *inode,
- unsigned int fragment,
- int create, int *err)
-{
- struct buffer_head dummy;
- int error;
-
- dummy.b_state = 0;
- dummy.b_blocknr = -1000;
- error = ufs_getfrag_block(inode, fragment, &dummy, create);
- *err = error;
- if (!error && buffer_mapped(&dummy)) {
- struct buffer_head *bh;
- bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
- if (buffer_new(&dummy)) {
- memset(bh->b_data, 0, inode->i_sb->s_blocksize);
- set_buffer_uptodate(bh);
- mark_buffer_dirty(bh);
- }
- return bh;
- }
- return NULL;
-}
-
-struct buffer_head * ufs_bread (struct inode * inode, unsigned fragment,
- int create, int * err)
-{
- struct buffer_head * bh;
-
- UFSD("ENTER, ino %lu, fragment %u\n", inode->i_ino, fragment);
- bh = ufs_getfrag (inode, fragment, create, err);
- if (!bh || buffer_uptodate(bh))
- return bh;
- ll_rw_block (READ, 1, &bh);
- wait_on_buffer (bh);
- if (buffer_uptodate(bh))
- return bh;
- brelse (bh);
- *err = -EIO;
- return NULL;
-}
-
static int ufs_writepage(struct page *page, struct writeback_control *wbc)
{
return block_write_full_page(page,ufs_getfrag_block,wbc);
@@ -900,9 +864,9 @@ static int ufs_update_inode(struct inode * inode, int do_sync)
int ufs_write_inode(struct inode *inode, struct writeback_control *wbc)
{
int ret;
- lock_kernel();
+ lock_ufs(inode->i_sb);
ret = ufs_update_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
- unlock_kernel();
+ unlock_ufs(inode->i_sb);
return ret;
}
@@ -922,22 +886,22 @@ void ufs_evict_inode(struct inode * inode)
if (want_delete) {
loff_t old_i_size;
/*UFS_I(inode)->i_dtime = CURRENT_TIME;*/
- lock_kernel();
+ lock_ufs(inode->i_sb);
mark_inode_dirty(inode);
ufs_update_inode(inode, IS_SYNC(inode));
old_i_size = inode->i_size;
inode->i_size = 0;
if (inode->i_blocks && ufs_truncate(inode, old_i_size))
ufs_warning(inode->i_sb, __func__, "ufs_truncate failed\n");
- unlock_kernel();
+ unlock_ufs(inode->i_sb);
}
invalidate_inode_buffers(inode);
end_writeback(inode);
if (want_delete) {
- lock_kernel();
+ lock_ufs(inode->i_sb);
ufs_free_inode (inode);
- unlock_kernel();
+ unlock_ufs(inode->i_sb);
}
}
OpenPOWER on IntegriCloud