Home Home > GIT Browse
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-19 14:49:16 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-19 14:49:16 -0800
commite19c29e8d8d3b2dbc4c9a859f40c3f95ed089441 (patch)
tree9fb1d7c2973bbcae7632d4380868ef8c9ce40713
parentafd290945cd283030b51b433a66fe57a8feb28c8 (diff)
parent8bc5191b261c4fd9a5e9052cebe04ce2ef05f2e7 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: qnx4: don't leak ->BitMap on late failure exits qnx4: reduce the insane nesting in qnx4_checkroot() qnx4: di_fname is an array, for crying out loud... vfs: remove printk from set_nlink() wake up s_wait_unfrozen when ->freeze_fs fails
-rw-r--r--fs/inode.c3
-rw-r--r--fs/qnx4/inode.c62
-rw-r--r--fs/super.c2
3 files changed, 27 insertions, 40 deletions
diff --git a/fs/inode.c b/fs/inode.c
index 4fa4f0916af9..fb10d86ffad7 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -322,9 +322,6 @@ EXPORT_SYMBOL(clear_nlink);
void set_nlink(struct inode *inode, unsigned int nlink)
{
if (!nlink) {
- printk_ratelimited(KERN_INFO
- "set_nlink() clearing i_nlink on %s inode %li\n",
- inode->i_sb->s_type->name, inode->i_ino);
clear_nlink(inode);
} else {
/* Yes, some filesystems do change nlink from zero to one */
diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c
index 2bfd987f4853..6b009548d2e0 100644
--- a/fs/qnx4/inode.c
+++ b/fs/qnx4/inode.c
@@ -179,47 +179,33 @@ static const char *qnx4_checkroot(struct super_block *sb)
struct qnx4_inode_entry *rootdir;
int rd, rl;
int i, j;
- int found = 0;
- if (*(qnx4_sb(sb)->sb->RootDir.di_fname) != '/') {
+ if (*(qnx4_sb(sb)->sb->RootDir.di_fname) != '/')
return "no qnx4 filesystem (no root dir).";
- } else {
- QNX4DEBUG((KERN_NOTICE "QNX4 filesystem found on dev %s.\n", sb->s_id));
- rd = le32_to_cpu(qnx4_sb(sb)->sb->RootDir.di_first_xtnt.xtnt_blk) - 1;
- rl = le32_to_cpu(qnx4_sb(sb)->sb->RootDir.di_first_xtnt.xtnt_size);
- for (j = 0; j < rl; j++) {
- bh = sb_bread(sb, rd + j); /* root dir, first block */
- if (bh == NULL) {
- return "unable to read root entry.";
- }
- for (i = 0; i < QNX4_INODES_PER_BLOCK; i++) {
- rootdir = (struct qnx4_inode_entry *) (bh->b_data + i * QNX4_DIR_ENTRY_SIZE);
- if (rootdir->di_fname != NULL) {
- QNX4DEBUG((KERN_INFO "rootdir entry found : [%s]\n", rootdir->di_fname));
- if (!strcmp(rootdir->di_fname,
- QNX4_BMNAME)) {
- found = 1;
- qnx4_sb(sb)->BitMap = kmemdup(rootdir,
- sizeof(struct qnx4_inode_entry),
- GFP_KERNEL);
- if (!qnx4_sb(sb)->BitMap) {
- brelse (bh);
- return "not enough memory for bitmap inode";
- }/* keep bitmap inode known */
- break;
- }
- }
- }
+ QNX4DEBUG((KERN_NOTICE "QNX4 filesystem found on dev %s.\n", sb->s_id));
+ rd = le32_to_cpu(qnx4_sb(sb)->sb->RootDir.di_first_xtnt.xtnt_blk) - 1;
+ rl = le32_to_cpu(qnx4_sb(sb)->sb->RootDir.di_first_xtnt.xtnt_size);
+ for (j = 0; j < rl; j++) {
+ bh = sb_bread(sb, rd + j); /* root dir, first block */
+ if (bh == NULL)
+ return "unable to read root entry.";
+ rootdir = (struct qnx4_inode_entry *) bh->b_data;
+ for (i = 0; i < QNX4_INODES_PER_BLOCK; i++, rootdir++) {
+ QNX4DEBUG((KERN_INFO "rootdir entry found : [%s]\n", rootdir->di_fname));
+ if (strcmp(rootdir->di_fname, QNX4_BMNAME) != 0)
+ continue;
+ qnx4_sb(sb)->BitMap = kmemdup(rootdir,
+ sizeof(struct qnx4_inode_entry),
+ GFP_KERNEL);
brelse(bh);
- if (found != 0) {
- break;
- }
- }
- if (found == 0) {
- return "bitmap file not found.";
+ if (!qnx4_sb(sb)->BitMap)
+ return "not enough memory for bitmap inode";
+ /* keep bitmap inode known */
+ return NULL;
}
+ brelse(bh);
}
- return NULL;
+ return "bitmap file not found.";
}
static int qnx4_fill_super(struct super_block *s, void *data, int silent)
@@ -270,7 +256,7 @@ static int qnx4_fill_super(struct super_block *s, void *data, int silent)
if (IS_ERR(root)) {
printk(KERN_ERR "qnx4: get inode failed\n");
ret = PTR_ERR(root);
- goto out;
+ goto outb;
}
ret = -ENOMEM;
@@ -283,6 +269,8 @@ static int qnx4_fill_super(struct super_block *s, void *data, int silent)
outi:
iput(root);
+ outb:
+ kfree(qs->BitMap);
out:
brelse(bh);
outnobh:
diff --git a/fs/super.c b/fs/super.c
index de41e1e46f09..6015c02296b7 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1186,6 +1186,8 @@ int freeze_super(struct super_block *sb)
printk(KERN_ERR
"VFS:Filesystem freeze failed\n");
sb->s_frozen = SB_UNFROZEN;
+ smp_wmb();
+ wake_up(&sb->s_wait_unfrozen);
deactivate_locked_super(sb);
return ret;
}