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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-20 20:00:43 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-20 20:00:43 -0800
commit4c9a44aebeaef35570a67aed17b72a2cf8d0b219 (patch)
treeabb874fe7f50671627b282f6c7fb58db5e75a2e3 /fs/hfsplus
parent1f0377ff088ed2971c57debc9b0c3b846ec431fd (diff)
parentcfde819088422503b5c69e03ab7bb90f87121d4d (diff)
Merge branch 'akpm' (Andrew's patch-bomb)
Merge the rest of Andrew's patches for -rc1: "A bunch of fixes and misc missed-out-on things. That'll do for -rc1. I still have a batch of IPC patches which still have a possible bug report which I'm chasing down." * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (25 commits) keys: use keyring_alloc() to create module signing keyring keys: fix unreachable code sendfile: allows bypassing of notifier events SGI-XP: handle non-fatal traps fat: fix incorrect function comment Documentation: ABI: remove testing/sysfs-devices-node proc: fix inconsistent lock state linux/kernel.h: fix DIV_ROUND_CLOSEST with unsigned divisors memcg: don't register hotcpu notifier from ->css_alloc() checkpatch: warn on uapi #includes that #include <uapi/... revert "rtc: recycle id when unloading a rtc driver" mm: clean up transparent hugepage sysfs error messages hfsplus: add error message for the case of failure of sync fs in delayed_sync_fs() method hfsplus: rework processing of hfs_btree_write() returned error hfsplus: rework processing errors in hfsplus_free_extents() hfsplus: avoid crash on failed block map free kcmp: include linux/ptrace.h drivers/rtc/rtc-imxdi.c: must include <linux/spinlock.h> mm: cma: WARN if freed memory is still in use exec: do not leave bprm->interp on stack ...
Diffstat (limited to 'fs/hfsplus')
-rw-r--r--fs/hfsplus/bitmap.c13
-rw-r--r--fs/hfsplus/btree.c5
-rw-r--r--fs/hfsplus/extents.c24
-rw-r--r--fs/hfsplus/hfsplus_fs.h2
-rw-r--r--fs/hfsplus/super.c15
5 files changed, 48 insertions, 11 deletions
diff --git a/fs/hfsplus/bitmap.c b/fs/hfsplus/bitmap.c
index 4cfbe2edd29..6feefc0cb48 100644
--- a/fs/hfsplus/bitmap.c
+++ b/fs/hfsplus/bitmap.c
@@ -176,12 +176,14 @@ int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count)
dprint(DBG_BITMAP, "block_free: %u,%u\n", offset, count);
/* are all of the bits in range? */
if ((offset + count) > sbi->total_blocks)
- return -2;
+ return -ENOENT;
mutex_lock(&sbi->alloc_mutex);
mapping = sbi->alloc_file->i_mapping;
pnr = offset / PAGE_CACHE_BITS;
page = read_mapping_page(mapping, pnr, NULL);
+ if (IS_ERR(page))
+ goto kaboom;
pptr = kmap(page);
curr = pptr + (offset & (PAGE_CACHE_BITS - 1)) / 32;
end = pptr + PAGE_CACHE_BITS / 32;
@@ -214,6 +216,8 @@ int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count)
set_page_dirty(page);
kunmap(page);
page = read_mapping_page(mapping, ++pnr, NULL);
+ if (IS_ERR(page))
+ goto kaboom;
pptr = kmap(page);
curr = pptr;
end = pptr + PAGE_CACHE_BITS / 32;
@@ -232,4 +236,11 @@ out:
mutex_unlock(&sbi->alloc_mutex);
return 0;
+
+kaboom:
+ printk(KERN_CRIT "hfsplus: unable to mark blocks free: error %ld\n",
+ PTR_ERR(page));
+ mutex_unlock(&sbi->alloc_mutex);
+
+ return -EIO;
}
diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c
index 21023d9f8ff..685d07d0ed1 100644
--- a/fs/hfsplus/btree.c
+++ b/fs/hfsplus/btree.c
@@ -159,7 +159,7 @@ void hfs_btree_close(struct hfs_btree *tree)
kfree(tree);
}
-void hfs_btree_write(struct hfs_btree *tree)
+int hfs_btree_write(struct hfs_btree *tree)
{
struct hfs_btree_header_rec *head;
struct hfs_bnode *node;
@@ -168,7 +168,7 @@ void hfs_btree_write(struct hfs_btree *tree)
node = hfs_bnode_find(tree, 0);
if (IS_ERR(node))
/* panic? */
- return;
+ return -EIO;
/* Load the header */
page = node->page[0];
head = (struct hfs_btree_header_rec *)(kmap(page) +
@@ -186,6 +186,7 @@ void hfs_btree_write(struct hfs_btree *tree)
kunmap(page);
set_page_dirty(page);
hfs_bnode_put(node);
+ return 0;
}
static struct hfs_bnode *hfs_bmap_new_bmap(struct hfs_bnode *prev, u32 idx)
diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c
index 5849e3ef35c..eba76eab6d6 100644
--- a/fs/hfsplus/extents.c
+++ b/fs/hfsplus/extents.c
@@ -329,6 +329,7 @@ static int hfsplus_free_extents(struct super_block *sb,
{
u32 count, start;
int i;
+ int err = 0;
hfsplus_dump_extent(extent);
for (i = 0; i < 8; extent++, i++) {
@@ -345,18 +346,33 @@ found:
for (;;) {
start = be32_to_cpu(extent->start_block);
if (count <= block_nr) {
- hfsplus_block_free(sb, start, count);
+ err = hfsplus_block_free(sb, start, count);
+ if (err) {
+ printk(KERN_ERR "hfs: can't free extent\n");
+ dprint(DBG_EXTENT, " start: %u count: %u\n",
+ start, count);
+ }
extent->block_count = 0;
extent->start_block = 0;
block_nr -= count;
} else {
count -= block_nr;
- hfsplus_block_free(sb, start + count, block_nr);
+ err = hfsplus_block_free(sb, start + count, block_nr);
+ if (err) {
+ printk(KERN_ERR "hfs: can't free extent\n");
+ dprint(DBG_EXTENT, " start: %u count: %u\n",
+ start, count);
+ }
extent->block_count = cpu_to_be32(count);
block_nr = 0;
}
- if (!block_nr || !i)
- return 0;
+ if (!block_nr || !i) {
+ /*
+ * Try to free all extents and
+ * return only last error
+ */
+ return err;
+ }
i--;
extent--;
count = be32_to_cpu(extent->block_count);
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index c571de224b1..a6da86b1b4c 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -335,7 +335,7 @@ int hfsplus_block_free(struct super_block *, u32, u32);
/* btree.c */
struct hfs_btree *hfs_btree_open(struct super_block *, u32);
void hfs_btree_close(struct hfs_btree *);
-void hfs_btree_write(struct hfs_btree *);
+int hfs_btree_write(struct hfs_btree *);
struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *);
void hfs_bmap_free(struct hfs_bnode *);
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 811a84d2d96..796198d2655 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -127,8 +127,14 @@ static int hfsplus_system_write_inode(struct inode *inode)
hfsplus_mark_mdb_dirty(inode->i_sb);
}
hfsplus_inode_write_fork(inode, fork);
- if (tree)
- hfs_btree_write(tree);
+ if (tree) {
+ int err = hfs_btree_write(tree);
+ if (err) {
+ printk(KERN_ERR "hfs: b-tree write err: %d, ino %lu\n",
+ err, inode->i_ino);
+ return err;
+ }
+ }
return 0;
}
@@ -226,6 +232,7 @@ out:
static void delayed_sync_fs(struct work_struct *work)
{
+ int err;
struct hfsplus_sb_info *sbi;
sbi = container_of(work, struct hfsplus_sb_info, sync_work.work);
@@ -234,7 +241,9 @@ static void delayed_sync_fs(struct work_struct *work)
sbi->work_queued = 0;
spin_unlock(&sbi->work_lock);
- hfsplus_sync_fs(sbi->alloc_file->i_sb, 1);
+ err = hfsplus_sync_fs(sbi->alloc_file->i_sb, 1);
+ if (err)
+ printk(KERN_ERR "hfs: delayed sync fs err %d\n", err);
}
void hfsplus_mark_mdb_dirty(struct super_block *sb)