search for: extent_io

Use access_extent_buffer_page() to point at btree location of inline compressed data so it can be inflated without a memcopy. Signed-off-by: jim owens <jowens@hp.com> Signed-off-by: jim owens <jim6336@gmail.com> --- V2 fixes whitespace checkpatch warning fs/btrfs/extent_io.c | 16 ++++++++++++++++ fs/btrfs/extent_io.h | 3 +++ 2 files changed, 19 insertions(+), 0 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index b177ed3..d2fc17a 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3053,6 +3053,22 @@ static inline struct pag...

In clear_extent_bit, it is enough that next node is adjacent in tree level. Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com> --- fs/btrfs/extent_io.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index fcf77e1..e941cc4 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -577,8 +577,7 @@ hit_next: if (start <= end && next_node) { state = rb_entr...

bio_add_page() requires non-NULL bio ptr for dereferencing. Signed-off-by: Peter Teoh <htmldeveloper@gmail.com> --- extent_io.c.orig1 2008-03-16 12:43:59.000000000 +0800 +++ extent_io.c 2008-03-16 12:45:03.000000000 +0800 @@ -1729,6 +1729,7 @@ static int submit_extent_page(int rw, st if (bio_ret && *bio_ret) { bio = *bio_ret; + BUG_ON(!bio); if (bio->bi_s...

..._range_uptodate() function returns 1 on errors). After testing this patch, the user reported that the error with the NULL pointer oops was solved. However, there is still a remaining problem with a thread becoming stuck in wait_on_page_locked(page) in the read_extent_buffer_pages(...) function in extent_io.c for (i = start_i; i < num_pages; i++) { page = extent_buffer_page(eb, i); wait_on_page_locked(page); if (!PageUptodate(page)) ret = -EIO; } This patch leaves the issue with the locked page yet to be resolved....

...] group_reporting thread numjobs=4 bs=32k rw=read ioengine=sync directory=/mnt/btrfs/ [READ] filename=foobar size=2000M invalidate=1 Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com> --- v1->v2: if we fail to make a allocation, just fall back to the old way to read page. fs/btrfs/extent_io.c | 41 +++++++++++++++++++++++++++++++++++++++-- 1 files changed, 39 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 01c21b6..5c8ab6c 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3549,6 +3549,11 @@ int extent_writepages(struct ext...

...t is supposed to. With this patch and all of our previous patches to find_lock_delalloc_range I am sure it is working as expected now. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> --- fs/btrfs/Makefile | 2 +- fs/btrfs/ctree.h | 6 + fs/btrfs/extent_io.c | 9 +- fs/btrfs/extent_io.h | 6 + fs/btrfs/super.c | 14 +- fs/btrfs/tests/btrfs-tests.h | 15 +++ fs/btrfs/tests/extent-io-tests.c | 276 +++++++++++++++++++++++++++++++++++++++ include/uapi/linux/magic.h | 2 +- 8 files changed, 321 in...

...p, but not adjust delalloc_end up, so things go sideways. To fix this we need to not limit the max bytes in find_delalloc_range, but in find_lock_delalloc_range and that way we don''t end up with this confusion. Thanks, Signed-off-by: Josef Bacik <jbacik@fusionio.com> --- fs/btrfs/extent_io.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index b48942f..2bf6f46 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -1491,10 +1491,8 @@ static noinline u64 find_delalloc_range(struct extent_io_tree *tr...

Hi gang, Here''s some trivial cleanups that I''ve built up while reading through the code. They''ve been run through xfstests -g quick. - z -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

...------------ -------- --------------- READ: 745MB/s +32% 987MB/s [1]: [global] group_reporting thread numjobs=4 bs=32k rw=read ioengine=sync directory=/mnt/btrfs/ [READ] filename=foobar size=2000M invalidate=1 Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com> --- fs/btrfs/extent_io.c | 37 +++++++++++++++++++++++++++++++++++-- 1 files changed, 35 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 01c21b6..8f9c18d 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3549,6 +3549,11 @@ int extent_writepages(struct extent_...

This patch makes us cache the extent state we find in find_delalloc_range since we''ll have to lock the extent later on in the function. This will keep us from re-searching for the rang when we try to lock the extent. Signed-off-by: Josef Bacik <josef@redhat.com> --- fs/btrfs/extent_io.c | 11 ++++++++--- 1 files changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 42b4cde..1376611 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -1171,7 +1171,8 @@ out: * 1 is returned if we find something, 0 if nothing was in...

restructure try_release_extent_buffer() and write a function to release the extent buffer. It will be used later. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> --- fs/btrfs/extent_io.c | 48 +++++++++++++++++++++++++++++++++++++----------- 1 files changed, 37 insertions(+), 11 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 41277d6..70b7cc5 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3097,6 +3097,39 @@ static void __free_exte...

...ls to btrfs_get_extent for similar areas that are sectorsize aligned. With this patch I ran xfstests 13 in a loop for a couple of hours and didn''t hit the problem that I could previously hit in at most 20 minutes. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> --- fs/btrfs/extent_io.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 1f87c4d..3891186 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3366,6 +3366,9 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fiei...

Because the value of extent_map is only a correct value or NULL, so IS_ERR is unnecessary. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> --- fs/btrfs/extent_io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 979fa0d..576ed9f 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2071,7 +2071,7 @@ static int bio_readpage_error(struct bio *failed_bio, struct page *page, }...

gcc says "warning: comparison of unsigned expression >= 0 is always true" because i is an unsigned long. And gcc is right this time. Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> --- fs/btrfs/extent_io.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 64dc93f..a32ebfe 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4104,8 +4104,8 @@ struct extent_buffer *alloc_dummy_extent_buffer(u64 start, unsigned long le...

...e-use the space while the original one is floating around. We should do the same thing as the kernel code does, it''s necessary to initialize @refs to 1 instead of 2, this helps us get rid of the above problem. Signed-off-by: Liu Bo <bo.li.liu@oracle.com> --- btrfs-convert.c | 1 + extent_io.c | 2 +- mkfs.c | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/btrfs-convert.c b/btrfs-convert.c index ae10eed..cb6ddd0 100644 --- a/btrfs-convert.c +++ b/btrfs-convert.c @@ -1634,6 +1634,7 @@ static int init_btrfs(struct btrfs_root *root) ret = create_subvol(t...

...does. So adding a callback for leak tracking can avoid this as well as runtime overhead. (The idea is from Zach Brown <zab@zabbo.net>.) Signed-off-by: Liu Bo <bo.li.liu@oracle.com> --- v2: add a wrapper API for slab destruction to make decoder only work in particular path. fs/btrfs/extent_io.c | 26 ++++++++++++++++++++++++-- fs/btrfs/extent_map.c | 13 ++++++++++++- include/linux/slab.h | 2 ++ include/linux/slab_def.h | 1 + include/linux/slub_def.h | 1 + mm/slab_common.c | 17 ++++++++++++++++- mm/slub.c | 2 ++ 7 files changed, 5...

...llocated objects in a list(or something else), this does indeed the same thing as what slab does. So adding a callback for leak tracking can avoid this as well as runtime overhead. Signed-off-by: Liu Bo <bo.li.liu@oracle.com> --- The idea is from Zach Brown <zab@zabbo.net>. fs/btrfs/extent_io.c | 24 ++++++++++++++++++++++++ fs/btrfs/extent_map.c | 12 ++++++++++++ include/linux/slab.h | 1 + include/linux/slab_def.h | 1 + include/linux/slub_def.h | 1 + mm/slab_common.c | 1 + mm/slub.c | 5 +++++ 7 files changed, 45 insertions(+),...

...fer flag btrfs: state information for readahead btrfs: initial readahead code and prototypes btrfs: hooks for readahead btrfs: test ioctl for readahead fs/btrfs/Makefile | 3 +- fs/btrfs/ctree.h | 13 + fs/btrfs/disk-io.c | 84 ++++- fs/btrfs/disk-io.h | 2 + fs/btrfs/extent_io.c | 8 +- fs/btrfs/extent_io.h | 4 +- fs/btrfs/ioctl.c | 93 +++++- fs/btrfs/ioctl.h | 16 + fs/btrfs/reada.c | 997 ++++++++++++++++++++++++++++++++++++++++++++++++++ fs/btrfs/volumes.c | 8 + fs/btrfs/volumes.h | 8 + 11 files changed, 1225 insertions(+), 11 dele...

...e which must be hooked, but all other cleancache hooks are in the VFS layer including the matching cleancache_flush_fs hook which must be called on unmount. Signed-off-by: Dan Magenheimer <dan.magenheimer at oracle.com> Signed-off-by: Chris Mason <chris.mason at oracle.com> Diffstat: extent_io.c | 9 +++++++++ super.c | 2 ++ 2 files changed, 11 insertions(+) --- linux-2.6.35-rc2/fs/btrfs/super.c 2010-06-05 21:43:24.000000000 -0600 +++ linux-2.6.35-rc2-cleancache/fs/btrfs/super.c 2010-06-11 09:01:37.000000000 -0600 @@ -...

...ation policy - Some other things Still needs more review. Found by gcc 4.6''s new warnings Cc: chris.mason@oracle.com cc: linux-btrfs@vger.kernel.org Signed-off-by: Andi Kleen <ak@linux.intel.com> --- fs/btrfs/dir-item.c | 2 +- fs/btrfs/extent-tree.c | 3 +-- fs/btrfs/extent_io.c | 2 ++ fs/btrfs/inode.c | 6 +++--- fs/btrfs/relocation.c | 4 +++- fs/btrfs/tree-log.c | 2 +- 6 files changed, 11 insertions(+), 8 deletions(-) Index: linux-2.6.35-rc2-gcc/fs/btrfs/extent-tree.c =================================================================== --- li...