Displaying 7 results from an estimated 7 matches for "alloc_extent_map".
2011 Feb 12
3
[PATCH] fix uncheck memory allocations
...ree(old);
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index b0ff34b..4895ad2 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -181,10 +181,14 @@ int btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end,
testend = 0;
}
while (1) {
- if (!split)
+ if (!split) {
split = alloc_extent_map(GFP_NOFS);
- if (!split2)
+ BUG_ON(!split || IS_ERR(split));
+ }
+ if (!split2) {
split2 = alloc_extent_map(GFP_NOFS);
+ BUG_ON(!split2 || IS_ERR(split2));
+ }
write_lock(&em_tree->lock);
em = lookup_extent_mapping(em_tree, start, len);
diff --git a/fs/btrfs/inode.c b/fs/...
2011 Feb 15
1
[PATCH] Btrfs: fix uncheck memory allocations
To make Btrfs code more robust, several return value checks where memory
allocation can fail are introduced. I use BUG_ON where I don''t know how
to handle the error properly, which increases the number of using the
notorious BUG_ON, though.
Signed-off-by: Yoshinori Sano <yoshinori.sano@gmail.com>
---
fs/btrfs/compression.c | 6 ++++++
fs/btrfs/extent-tree.c | 4 ++++
2013 Nov 12
0
[PATCH] Btrfs: incompatible format change to remove hole extents V4
...rr) {
- btrfs_abort_transaction(trans, root, err);
- btrfs_end_transaction(trans, root);
+ err = maybe_insert_hole(root, inode, cur_offset,
+ hole_size);
+ if (err)
break;
- }
-
btrfs_drop_extent_cache(inode, cur_offset,
cur_offset + hole_size - 1, 0);
hole_em = alloc_extent_map();
@@ -4310,7 +4331,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
hole_em->ram_bytes = hole_size;
hole_em->bdev = root->fs_info->fs_devices->latest_bdev;
hole_em->compress_type = BTRFS_COMPRESS_NONE;
- hole_em->generation = trans->...
2010 May 07
6
[PATCH 1/5] fs: allow short direct-io reads to be completed via buffered IO V2
V1->V2: Check to see if our current ppos is >= i_size after a short DIO read,
just in case it was actually a short read and we need to just return.
This is similar to what already happens in the write case. If we have a short
read while doing O_DIRECT, instead of just returning, fallthrough and try to
read the rest via buffered IO. BTRFS needs this because if we encounter a
compressed or
2011 Aug 15
9
[patch v2 0/9] btrfs: More error handling patches
Hi all -
The following 9 patches add more error handling to the btrfs code:
- Add btrfs_panic
- Catch locking failures in {set,clear}_extent_bit
- Push up set_extent_bit errors to callers
- Push up lock_extent errors to callers
- Push up clear_extent_bit errors to callers
- Push up unlock_extent errors to callers
- Make pin_down_extent return void
- Push up btrfs_pin_extent errors to
2010 Sep 03
0
[PATCH 1/2] btrfs: document where we use BUG_ON instead of error handling
...ync_extent);
cond_resched();
@@ -812,7 +812,7 @@ static noinline int cow_file_range(struct inode *inode,
ret = btrfs_reserve_extent(trans, root, cur_alloc_size,
root->sectorsize, 0, alloc_hint,
(u64)-1, &ins, 1);
- BUG_ON(ret);
+ btrfs_fixable_bug_on(ret);
em = alloc_extent_map(GFP_NOFS);
em->start = start;
@@ -840,13 +840,13 @@ static noinline int cow_file_range(struct inode *inode,
cur_alloc_size = ins.offset;
ret = btrfs_add_ordered_extent(inode, start, ins.objectid,
ram_size, cur_alloc_size, 0);
- BUG_ON(ret);
+ btrfs_fixable_bug_on(ret);...
2011 Oct 04
68
[patch 00/65] Error handling patchset v3
Hi all -
Here''s my current error handling patchset, against 3.1-rc8. Almost all of
this patchset is preparing for actual error handling. Before we start in
on that work, I''m trying to reduce the surface we need to worry about. It
turns out that there is a ton of code that returns an error code but never
actually reports an error.
The patchset has grown to 65 patches. 46 of them