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authorTakashi Iwai <tiwai@suse.de>2013-05-29 12:52:16 +0200
committerTakashi Iwai <tiwai@suse.de>2013-05-29 12:52:16 +0200
commit8a90bb5116889e98008fbc8178fc2a77bb51df4a (patch)
tree210b6755c9ae2d0d66a79f8696469ab50b7621ad /fs/btrfs/inode.c
parentd47333ddb234dbc661ab2a4fe019758bd33ba33b (diff)
parent1ab9ecc24819a8cf8ee982aaf6fb83298f094b0d (diff)
Merge tag 'asoc-v3.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v3.10 A series of driver specific updates, none particularly critical, plus one fix to the compressed API code to handle capture streams properly which is very safe for mainline as there's no current users.
Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r--fs/btrfs/inode.c81
1 files changed, 53 insertions, 28 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 9b31b3b091fc..af978f7682b3 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -715,8 +715,10 @@ retry:
async_extent->ram_size - 1, 0);
em = alloc_extent_map();
- if (!em)
+ if (!em) {
+ ret = -ENOMEM;
goto out_free_reserve;
+ }
em->start = async_extent->start;
em->len = async_extent->ram_size;
em->orig_start = em->start;
@@ -923,8 +925,10 @@ static noinline int __cow_file_range(struct btrfs_trans_handle *trans,
}
em = alloc_extent_map();
- if (!em)
+ if (!em) {
+ ret = -ENOMEM;
goto out_reserve;
+ }
em->start = start;
em->orig_start = em->start;
ram_size = ins.offset;
@@ -4724,6 +4728,7 @@ void btrfs_evict_inode(struct inode *inode)
btrfs_end_transaction(trans, root);
btrfs_btree_balance_dirty(root);
no_delete:
+ btrfs_remove_delayed_node(inode);
clear_inode(inode);
return;
}
@@ -4839,14 +4844,13 @@ static void inode_tree_add(struct inode *inode)
struct rb_node **p;
struct rb_node *parent;
u64 ino = btrfs_ino(inode);
-again:
- p = &root->inode_tree.rb_node;
- parent = NULL;
if (inode_unhashed(inode))
return;
-
+again:
+ parent = NULL;
spin_lock(&root->inode_lock);
+ p = &root->inode_tree.rb_node;
while (*p) {
parent = *p;
entry = rb_entry(parent, struct btrfs_inode, rb_node);
@@ -6928,7 +6932,11 @@ struct btrfs_dio_private {
/* IO errors */
int errors;
+ /* orig_bio is our btrfs_io_bio */
struct bio *orig_bio;
+
+ /* dio_bio came from fs/direct-io.c */
+ struct bio *dio_bio;
};
static void btrfs_endio_direct_read(struct bio *bio, int err)
@@ -6938,6 +6946,7 @@ static void btrfs_endio_direct_read(struct bio *bio, int err)
struct bio_vec *bvec = bio->bi_io_vec;
struct inode *inode = dip->inode;
struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct bio *dio_bio;
u64 start;
start = dip->logical_offset;
@@ -6977,14 +6986,15 @@ failed:
unlock_extent(&BTRFS_I(inode)->io_tree, dip->logical_offset,
dip->logical_offset + dip->bytes - 1);
- bio->bi_private = dip->private;
+ dio_bio = dip->dio_bio;
kfree(dip);
/* If we had a csum failure make sure to clear the uptodate flag */
if (err)
- clear_bit(BIO_UPTODATE, &bio->bi_flags);
- dio_end_io(bio, err);
+ clear_bit(BIO_UPTODATE, &dio_bio->bi_flags);
+ dio_end_io(dio_bio, err);
+ bio_put(bio);
}
static void btrfs_endio_direct_write(struct bio *bio, int err)
@@ -6995,6 +7005,7 @@ static void btrfs_endio_direct_write(struct bio *bio, int err)
struct btrfs_ordered_extent *ordered = NULL;
u64 ordered_offset = dip->logical_offset;
u64 ordered_bytes = dip->bytes;
+ struct bio *dio_bio;
int ret;
if (err)
@@ -7022,14 +7033,15 @@ out_test:
goto again;
}
out_done:
- bio->bi_private = dip->private;
+ dio_bio = dip->dio_bio;
kfree(dip);
/* If we had an error make sure to clear the uptodate flag */
if (err)
- clear_bit(BIO_UPTODATE, &bio->bi_flags);
- dio_end_io(bio, err);
+ clear_bit(BIO_UPTODATE, &dio_bio->bi_flags);
+ dio_end_io(dio_bio, err);
+ bio_put(bio);
}
static int __btrfs_submit_bio_start_direct_io(struct inode *inode, int rw,
@@ -7065,10 +7077,10 @@ static void btrfs_end_dio_bio(struct bio *bio, int err)
if (!atomic_dec_and_test(&dip->pending_bios))
goto out;
- if (dip->errors)
+ if (dip->errors) {
bio_io_error(dip->orig_bio);
- else {
- set_bit(BIO_UPTODATE, &dip->orig_bio->bi_flags);
+ } else {
+ set_bit(BIO_UPTODATE, &dip->dio_bio->bi_flags);
bio_endio(dip->orig_bio, 0);
}
out:
@@ -7243,25 +7255,34 @@ out_err:
return 0;
}
-static void btrfs_submit_direct(int rw, struct bio *bio, struct inode *inode,
- loff_t file_offset)
+static void btrfs_submit_direct(int rw, struct bio *dio_bio,
+ struct inode *inode, loff_t file_offset)
{
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_dio_private *dip;
- struct bio_vec *bvec = bio->bi_io_vec;
+ struct bio_vec *bvec = dio_bio->bi_io_vec;
+ struct bio *io_bio;
int skip_sum;
int write = rw & REQ_WRITE;
int ret = 0;
skip_sum = BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM;
+ io_bio = btrfs_bio_clone(dio_bio, GFP_NOFS);
+
+ if (!io_bio) {
+ ret = -ENOMEM;
+ goto free_ordered;
+ }
+
dip = kmalloc(sizeof(*dip), GFP_NOFS);
if (!dip) {
ret = -ENOMEM;
- goto free_ordered;
+ goto free_io_bio;
}
- dip->private = bio->bi_private;
+ dip->private = dio_bio->bi_private;
+ io_bio->bi_private = dio_bio->bi_private;
dip->inode = inode;
dip->logical_offset = file_offset;
@@ -7269,22 +7290,27 @@ static void btrfs_submit_direct(int rw, struct bio *bio, struct inode *inode,
do {
dip->bytes += bvec->bv_len;
bvec++;
- } while (bvec <= (bio->bi_io_vec + bio->bi_vcnt - 1));
+ } while (bvec <= (dio_bio->bi_io_vec + dio_bio->bi_vcnt - 1));
- dip->disk_bytenr = (u64)bio->bi_sector << 9;
- bio->bi_private = dip;
+ dip->disk_bytenr = (u64)dio_bio->bi_sector << 9;
+ io_bio->bi_private = dip;
dip->errors = 0;
- dip->orig_bio = bio;
+ dip->orig_bio = io_bio;
+ dip->dio_bio = dio_bio;
atomic_set(&dip->pending_bios, 0);
if (write)
- bio->bi_end_io = btrfs_endio_direct_write;
+ io_bio->bi_end_io = btrfs_endio_direct_write;
else
- bio->bi_end_io = btrfs_endio_direct_read;
+ io_bio->bi_end_io = btrfs_endio_direct_read;
ret = btrfs_submit_direct_hook(rw, dip, skip_sum);
if (!ret)
return;
+
+free_io_bio:
+ bio_put(io_bio);
+
free_ordered:
/*
* If this is a write, we need to clean up the reserved space and kill
@@ -7300,7 +7326,7 @@ free_ordered:
btrfs_put_ordered_extent(ordered);
btrfs_put_ordered_extent(ordered);
}
- bio_endio(bio, ret);
+ bio_endio(dio_bio, ret);
}
static ssize_t check_direct_IO(struct btrfs_root *root, int rw, struct kiocb *iocb,
@@ -7979,7 +8005,6 @@ void btrfs_destroy_inode(struct inode *inode)
inode_tree_del(inode);
btrfs_drop_extent_cache(inode, 0, (u64)-1, 0);
free:
- btrfs_remove_delayed_node(inode);
call_rcu(&inode->i_rcu, btrfs_i_callback);
}