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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-09-09 12:05:37 -0400
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-09-09 12:05:37 -0400
commit65320fcedaa7affd1736cd7aa51f5e70b5c7e7f2 (patch)
tree2fb1bdf8a1139262dd13fa671055c7517cb3fffb /fs/btrfs/file.c
parentc3f31f6a6f68bcb51689c90733282ec263602a9d (diff)
parentd8dfad3876e4386666b759da3c833d62fb8b2267 (diff)
Merge tag 'v3.11-rc7' into stable/for-linus-3.12
Linux 3.11-rc7 As we need the git commit 28817e9de4f039a1a8c1fe1df2fa2df524626b9e Author: Chuck Anderson <chuck.anderson@oracle.com> Date: Tue Aug 6 15:12:19 2013 -0700 xen/smp: initialize IPI vectors before marking CPU online * tag 'v3.11-rc7': (443 commits) Linux 3.11-rc7 ARC: [lib] strchr breakage in Big-endian configuration VFS: collect_mounts() should return an ERR_PTR bfs: iget_locked() doesn't return an ERR_PTR efs: iget_locked() doesn't return an ERR_PTR() proc: kill the extra proc_readfd_common()->dir_emit_dots() cope with potentially long ->d_dname() output for shmem/hugetlb usb: phy: fix build breakage USB: OHCI: add missing PCI PM callbacks to ohci-pci.c staging: comedi: bug-fix NULL pointer dereference on failed attach lib/lz4: correct the LZ4 license memcg: get rid of swapaccount leftovers nilfs2: fix issue with counting number of bio requests for BIO_EOPNOTSUPP error detection nilfs2: remove double bio_put() in nilfs_end_bio_write() for BIO_EOPNOTSUPP error drivers/platform/olpc/olpc-ec.c: initialise earlier ipv4: expose IPV4_DEVCONF ipv6: handle Redirect ICMP Message with no Redirected Header option be2net: fix disabling TX in be_close() Revert "ACPI / video: Always call acpi_video_init_brightness() on init" Revert "genetlink: fix family dump race" ... Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'fs/btrfs/file.c')
-rw-r--r--fs/btrfs/file.c62
1 files changed, 40 insertions, 22 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index a005fe2c072a..8e686a427ce2 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -596,20 +596,29 @@ void btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end,
596 if (no_splits) 596 if (no_splits)
597 goto next; 597 goto next;
598 598
599 if (em->block_start < EXTENT_MAP_LAST_BYTE && 599 if (em->start < start) {
600 em->start < start) {
601 split->start = em->start; 600 split->start = em->start;
602 split->len = start - em->start; 601 split->len = start - em->start;
603 split->orig_start = em->orig_start;
604 split->block_start = em->block_start;
605 602
606 if (compressed) 603 if (em->block_start < EXTENT_MAP_LAST_BYTE) {
607 split->block_len = em->block_len; 604 split->orig_start = em->orig_start;
608 else 605 split->block_start = em->block_start;
609 split->block_len = split->len; 606
610 split->ram_bytes = em->ram_bytes; 607 if (compressed)
611 split->orig_block_len = max(split->block_len, 608 split->block_len = em->block_len;
612 em->orig_block_len); 609 else
610 split->block_len = split->len;
611 split->orig_block_len = max(split->block_len,
612 em->orig_block_len);
613 split->ram_bytes = em->ram_bytes;
614 } else {
615 split->orig_start = split->start;
616 split->block_len = 0;
617 split->block_start = em->block_start;
618 split->orig_block_len = 0;
619 split->ram_bytes = split->len;
620 }
621
613 split->generation = gen; 622 split->generation = gen;
614 split->bdev = em->bdev; 623 split->bdev = em->bdev;
615 split->flags = flags; 624 split->flags = flags;
@@ -620,8 +629,7 @@ void btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end,
620 split = split2; 629 split = split2;
621 split2 = NULL; 630 split2 = NULL;
622 } 631 }
623 if (em->block_start < EXTENT_MAP_LAST_BYTE && 632 if (testend && em->start + em->len > start + len) {
624 testend && em->start + em->len > start + len) {
625 u64 diff = start + len - em->start; 633 u64 diff = start + len - em->start;
626 634
627 split->start = start + len; 635 split->start = start + len;
@@ -630,18 +638,28 @@ void btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end,
630 split->flags = flags; 638 split->flags = flags;
631 split->compress_type = em->compress_type; 639 split->compress_type = em->compress_type;
632 split->generation = gen; 640 split->generation = gen;
633 split->orig_block_len = max(em->block_len, 641
642 if (em->block_start < EXTENT_MAP_LAST_BYTE) {
643 split->orig_block_len = max(em->block_len,
634 em->orig_block_len); 644 em->orig_block_len);
635 split->ram_bytes = em->ram_bytes;
636 645
637 if (compressed) { 646 split->ram_bytes = em->ram_bytes;
638 split->block_len = em->block_len; 647 if (compressed) {
639 split->block_start = em->block_start; 648 split->block_len = em->block_len;
640 split->orig_start = em->orig_start; 649 split->block_start = em->block_start;
650 split->orig_start = em->orig_start;
651 } else {
652 split->block_len = split->len;
653 split->block_start = em->block_start
654 + diff;
655 split->orig_start = em->orig_start;
656 }
641 } else { 657 } else {
642 split->block_len = split->len; 658 split->ram_bytes = split->len;
643 split->block_start = em->block_start + diff; 659 split->orig_start = split->start;
644 split->orig_start = em->orig_start; 660 split->block_len = 0;
661 split->block_start = em->block_start;
662 split->orig_block_len = 0;
645 } 663 }
646 664
647 ret = add_extent_mapping(em_tree, split, modified); 665 ret = add_extent_mapping(em_tree, split, modified);
generated by cgit v1.2.2 (git 2.25.0) at 2025-06-05 05:17:19 -0400