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authorLinus Torvalds <torvalds@g5.osdl.org>2006-10-20 10:28:14 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-20 10:28:14 -0700
commitadfefb551517a0d0d1645e94f464817b8fb1a07f (patch)
tree5fce9d0ac131311b5d90a55d6132fbec6aa38dbe /fs
parentd2c5f06e361f18be0d7b75988ce6a9e8800a8113 (diff)
parentb7d8ac3e1779c30ddef0a8f38042076c5007a23d (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes: [GFS2] gfs2_dir_read_data(): fix uninitialized variable usage [GFS2] fs/gfs2/ops_fstype.c:fill_super_meta(): fix NULL dereference [GFS2] fs/gfs2/dir.c:gfs2_dir_write_data(): don't use an uninitialized variable [GFS2] fs/gfs2/ops_fstype.c:gfs2_get_sb_meta(): remove unused variable [GFS2] fs/gfs2/dir.c:gfs2_dir_write_data(): remove dead code [GFS2] gfs2 endianness bug: be16 assigned to be32 field [GFS2] Fix bmap to map extents properly [DLM] fix iovec length in recvmsg
Diffstat (limited to 'fs')
-rw-r--r--fs/dlm/lowcomms.c1
-rw-r--r--fs/gfs2/bmap.c13
-rw-r--r--fs/gfs2/bmap.h2
-rw-r--r--fs/gfs2/dir.c10
-rw-r--r--fs/gfs2/log.c6
-rw-r--r--fs/gfs2/ops_address.c6
-rw-r--r--fs/gfs2/ops_fstype.c7
-rw-r--r--fs/gfs2/quota.c5
-rw-r--r--fs/gfs2/recovery.c5
9 files changed, 27 insertions, 28 deletions
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 867f93d0417..6da6b14d5a6 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -519,6 +519,7 @@ static int receive_from_sock(void)
msg.msg_flags = 0;
msg.msg_control = incmsg;
msg.msg_controllen = sizeof(incmsg);
+ msg.msg_iovlen = 1;
/* I don't see why this circular buffer stuff is necessary for SCTP
* which is a packet-based protocol, but the whole thing breaks under
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index cc57f2ecd21..06e9a8cb45e 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -434,8 +434,7 @@ static int lookup_block(struct gfs2_inode *ip, struct buffer_head *bh,
*/
static int gfs2_block_pointers(struct inode *inode, u64 lblock, int create,
- struct buffer_head *bh_map, struct metapath *mp,
- unsigned int maxlen)
+ struct buffer_head *bh_map, struct metapath *mp)
{
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_sbd *sdp = GFS2_SB(inode);
@@ -448,6 +447,7 @@ static int gfs2_block_pointers(struct inode *inode, u64 lblock, int create,
int new = 0;
u64 dblock = 0;
int boundary;
+ unsigned int maxlen = bh_map->b_size >> inode->i_blkbits;
BUG_ON(maxlen == 0);
@@ -541,13 +541,13 @@ static inline void bmap_unlock(struct inode *inode, int create)
}
int gfs2_block_map(struct inode *inode, u64 lblock, int create,
- struct buffer_head *bh, unsigned int maxlen)
+ struct buffer_head *bh)
{
struct metapath mp;
int ret;
bmap_lock(inode, create);
- ret = gfs2_block_pointers(inode, lblock, create, bh, &mp, maxlen);
+ ret = gfs2_block_pointers(inode, lblock, create, bh, &mp);
bmap_unlock(inode, create);
return ret;
}
@@ -555,7 +555,7 @@ int gfs2_block_map(struct inode *inode, u64 lblock, int create,
int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsigned *extlen)
{
struct metapath mp;
- struct buffer_head bh = { .b_state = 0, .b_blocknr = 0, .b_size = 0 };
+ struct buffer_head bh = { .b_state = 0, .b_blocknr = 0 };
int ret;
int create = *new;
@@ -563,8 +563,9 @@ int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsi
BUG_ON(!dblock);
BUG_ON(!new);
+ bh.b_size = 1 << (inode->i_blkbits + 5);
bmap_lock(inode, create);
- ret = gfs2_block_pointers(inode, lblock, create, &bh, &mp, 32);
+ ret = gfs2_block_pointers(inode, lblock, create, &bh, &mp);
bmap_unlock(inode, create);
*extlen = bh.b_size >> inode->i_blkbits;
*dblock = bh.b_blocknr;
diff --git a/fs/gfs2/bmap.h b/fs/gfs2/bmap.h
index 0fd379b4cd9..ac2fd04370d 100644
--- a/fs/gfs2/bmap.h
+++ b/fs/gfs2/bmap.h
@@ -15,7 +15,7 @@ struct gfs2_inode;
struct page;
int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page);
-int gfs2_block_map(struct inode *inode, u64 lblock, int create, struct buffer_head *bh, unsigned int maxlen);
+int gfs2_block_map(struct inode *inode, u64 lblock, int create, struct buffer_head *bh);
int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsigned *extlen);
int gfs2_truncatei(struct gfs2_inode *ip, u64 size);
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 459498cac93..e24af28b1a1 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -184,7 +184,7 @@ static int gfs2_dir_write_data(struct gfs2_inode *ip, const char *buf,
while (copied < size) {
unsigned int amount;
struct buffer_head *bh;
- int new;
+ int new = 0;
amount = size - copied;
if (amount > sdp->sd_sb.sb_bsize - o)
@@ -212,8 +212,6 @@ static int gfs2_dir_write_data(struct gfs2_inode *ip, const char *buf,
gfs2_trans_add_bh(ip->i_gl, bh, 1);
memcpy(bh->b_data + o, buf, amount);
brelse(bh);
- if (error)
- goto fail;
buf += amount;
copied += amount;
@@ -317,8 +315,7 @@ static int gfs2_dir_read_data(struct gfs2_inode *ip, char *buf, u64 offset,
if (!ra)
extlen = 1;
bh = gfs2_meta_ra(ip->i_gl, dblock, extlen);
- }
- if (!bh) {
+ } else {
error = gfs2_meta_read(ip->i_gl, dblock, DIO_WAIT, &bh);
if (error)
goto fail;
@@ -332,7 +329,6 @@ static int gfs2_dir_read_data(struct gfs2_inode *ip, char *buf, u64 offset,
extlen--;
memcpy(buf, bh->b_data + o, amount);
brelse(bh);
- bh = NULL;
buf += amount;
copied += amount;
lblock++;
@@ -815,7 +811,7 @@ static struct gfs2_leaf *new_leaf(struct inode *inode, struct buffer_head **pbh,
leaf = (struct gfs2_leaf *)bh->b_data;
leaf->lf_depth = cpu_to_be16(depth);
leaf->lf_entries = 0;
- leaf->lf_dirent_format = cpu_to_be16(GFS2_FORMAT_DE);
+ leaf->lf_dirent_format = cpu_to_be32(GFS2_FORMAT_DE);
leaf->lf_next = 0;
memset(leaf->lf_reserved, 0, sizeof(leaf->lf_reserved));
dent = (struct gfs2_dirent *)(leaf+1);
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 72eec6542d6..0cace3da9db 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -312,10 +312,12 @@ void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks)
static u64 log_bmap(struct gfs2_sbd *sdp, unsigned int lbn)
{
+ struct inode *inode = sdp->sd_jdesc->jd_inode;
int error;
- struct buffer_head bh_map;
+ struct buffer_head bh_map = { .b_state = 0, .b_blocknr = 0 };
- error = gfs2_block_map(sdp->sd_jdesc->jd_inode, lbn, 0, &bh_map, 1);
+ bh_map.b_size = 1 << inode->i_blkbits;
+ error = gfs2_block_map(inode, lbn, 0, &bh_map);
if (error || !bh_map.b_blocknr)
printk(KERN_INFO "error=%d, dbn=%llu lbn=%u", error, bh_map.b_blocknr, lbn);
gfs2_assert_withdraw(sdp, !error && bh_map.b_blocknr);
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index e0599fed99c..8d5963c7e12 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -65,7 +65,7 @@ static void gfs2_page_add_databufs(struct gfs2_inode *ip, struct page *page,
int gfs2_get_block(struct inode *inode, sector_t lblock,
struct buffer_head *bh_result, int create)
{
- return gfs2_block_map(inode, lblock, create, bh_result, 32);
+ return gfs2_block_map(inode, lblock, create, bh_result);
}
/**
@@ -83,7 +83,7 @@ static int gfs2_get_block_noalloc(struct inode *inode, sector_t lblock,
{
int error;
- error = gfs2_block_map(inode, lblock, 0, bh_result, 1);
+ error = gfs2_block_map(inode, lblock, 0, bh_result);
if (error)
return error;
if (bh_result->b_blocknr == 0)
@@ -94,7 +94,7 @@ static int gfs2_get_block_noalloc(struct inode *inode, sector_t lblock,
static int gfs2_get_block_direct(struct inode *inode, sector_t lblock,
struct buffer_head *bh_result, int create)
{
- return gfs2_block_map(inode, lblock, 0, bh_result, 32);
+ return gfs2_block_map(inode, lblock, 0, bh_result);
}
/**
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 178b3391184..882873a6bd6 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -794,8 +794,8 @@ static int fill_super_meta(struct super_block *sb, struct super_block *new,
fs_err(sdp, "can't get root dentry\n");
error = -ENOMEM;
iput(inode);
- }
- new->s_root->d_op = &gfs2_dops;
+ } else
+ new->s_root->d_op = &gfs2_dops;
return error;
}
@@ -854,7 +854,6 @@ static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags,
int error = 0;
struct super_block *sb = NULL, *new;
struct gfs2_sbd *sdp;
- char *gfs2mnt = NULL;
sb = get_gfs2_sb(dev_name);
if (!sb) {
@@ -892,8 +891,6 @@ static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags,
atomic_inc(&sdp->sd_gfs2mnt->mnt_count);
return simple_set_mnt(mnt, new);
error:
- if (gfs2mnt)
- kfree(gfs2mnt);
return error;
}
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index c69b94a5558..a3deae7416c 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -251,7 +251,7 @@ static int bh_get(struct gfs2_quota_data *qd)
unsigned int block, offset;
struct buffer_head *bh;
int error;
- struct buffer_head bh_map;
+ struct buffer_head bh_map = { .b_state = 0, .b_blocknr = 0 };
mutex_lock(&sdp->sd_quota_mutex);
@@ -263,7 +263,8 @@ static int bh_get(struct gfs2_quota_data *qd)
block = qd->qd_slot / sdp->sd_qc_per_block;
offset = qd->qd_slot % sdp->sd_qc_per_block;;
- error = gfs2_block_map(&ip->i_inode, block, 0, &bh_map, 1);
+ bh_map.b_size = 1 << ip->i_inode.i_blkbits;
+ error = gfs2_block_map(&ip->i_inode, block, 0, &bh_map);
if (error)
goto fail;
error = gfs2_meta_read(ip->i_gl, bh_map.b_blocknr, DIO_WAIT, &bh);
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 0a8a4b87dcc..62cd223819b 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -372,11 +372,12 @@ static int clean_journal(struct gfs2_jdesc *jd, struct gfs2_log_header *head)
u32 hash;
struct buffer_head *bh;
int error;
- struct buffer_head bh_map;
+ struct buffer_head bh_map = { .b_state = 0, .b_blocknr = 0 };
lblock = head->lh_blkno;
gfs2_replay_incr_blk(sdp, &lblock);
- error = gfs2_block_map(&ip->i_inode, lblock, 0, &bh_map, 1);
+ bh_map.b_size = 1 << ip->i_inode.i_blkbits;
+ error = gfs2_block_map(&ip->i_inode, lblock, 0, &bh_map);
if (error)
return error;
if (!bh_map.b_blocknr) {