Displaying 6 results from an estimated 6 matches for "extent_flag_compressed".
2010 Mar 22
0
[PATCH] Btrfs: change direct I/O read to not use i_mutex.
...ad)
+{
+ struct extent_io_tree *io_tree = &BTRFS_I(diocb->inode)->io_tree;
+ struct btrfs_ordered_extent *ordered;
+ u64 stop;
+
+ /* must ensure the whole compressed extent is valid on each loop
+ * as we don''t know the final extent size until we look it up
+ */
+ if (test_bit(EXTENT_FLAG_COMPRESSED, &em->flags) &&
+ (diocb->lockstart > em->start || *lockend <= em->start + em->len)) {
+ unlock_extent(io_tree, diocb->lockstart, *lockend, GFP_NOFS);
+ diocb->lockstart = em->start;
+ *lockend = min(*lockend, em->start + em->len - 1);
+ *safe...
2013 Mar 15
2
[PATCH] Btrfs: fix warning of free_extent_map
...1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 83c790d..7bdb47f 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -591,6 +591,7 @@ void btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end,
}
compressed = test_bit(EXTENT_FLAG_COMPRESSED, &em->flags);
clear_bit(EXTENT_FLAG_PINNED, &em->flags);
+ clear_bit(EXTENT_FLAG_LOGGING, &flags);
remove_extent_mapping(em_tree, em);
if (no_splits)
goto next;
--
1.7.7.6
--
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the bo...
2012 Sep 17
0
[PATCH] Btrfs: do not hold the write_lock on the extent tree while logging V2
...(!test_bit(EXTENT_FLAG_LOGGING, &em->flags))
+ list_del_init(&em->list);
em->in_tree = 0;
return ret;
}
diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index 8e6294b..6792255 100644
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -13,6 +13,7 @@
#define EXTENT_FLAG_COMPRESSED 1
#define EXTENT_FLAG_VACANCY 2 /* no file extent item found */
#define EXTENT_FLAG_PREALLOC 3 /* pre-allocated extent */
+#define EXTENT_FLAG_LOGGING 4 /* Logging this extent */
struct extent_map {
struct rb_node rb_node;
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 038a522....
2013 Oct 16
0
[PATCH] Btrfs: add tests for btrfs_get_extent V2
...long compressed_only = 0;
+static unsigned long vacancy_only = 0;
+
+static noinline int test_btrfs_get_extent(void)
+{
+ struct inode *inode = NULL;
+ struct btrfs_root *root = NULL;
+ struct extent_map *em = NULL;
+ u64 orig_start;
+ u64 disk_bytenr;
+ u64 offset;
+ int ret = -ENOMEM;
+
+ set_bit(EXTENT_FLAG_COMPRESSED, &compressed_only);
+ set_bit(EXTENT_FLAG_VACANCY, &vacancy_only);
+ set_bit(EXTENT_FLAG_PREALLOC, &prealloc_only);
+
+ inode = btrfs_new_test_inode();
+ if (!inode) {
+ test_msg("Couldn''t allocate inode\n");
+ return ret;
+ }
+
+ BTRFS_I(inode)->location.type =...
2013 Aug 06
6
[PATCH 0/4] btrfs: out-of-band (aka offline) dedupe v4
Hi,
The following series of patches implements in btrfs an ioctl to do
out-of-band deduplication of file extents.
To be clear, this means that the file system is mounted and running, but the
dedupe is not done during file writes, but after the fact when some
userspace software initiates a dedupe.
The primary patch is loosely based off of one sent by Josef Bacik back
in January, 2011.
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