From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: david@fromorbit.com, darrick.wong@oracle.com
Cc: linux-fsdevel@vger.kernel.org, vishal.l.verma@intel.com, xfs@oss.sgi.com
Subject: [PATCH 081/119] xfs: allocate delayed extents in CoW fork
Date: Thu, 16 Jun 2016 18:26:30 -0700 [thread overview]
Message-ID: <146612679068.12839.13248247674043879834.stgit@birch.djwong.org> (raw)
In-Reply-To: <146612627129.12839.3827886950949809165.stgit@birch.djwong.org>
Modify the writepage handler to find and convert pending delalloc
extents to real allocations.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
fs/xfs/xfs_aops.c | 57 ++++++++++++++++++++++++---
fs/xfs/xfs_aops.h | 4 +-
fs/xfs/xfs_reflink.c | 106 ++++++++++++++++++++++++++++++++++++++++++++++++++
fs/xfs/xfs_reflink.h | 5 ++
4 files changed, 164 insertions(+), 8 deletions(-)
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 50c4bf11..802d432 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -312,10 +312,15 @@ xfs_map_blocks(
int error = 0;
int bmapi_flags = XFS_BMAPI_ENTIRE;
int nimaps = 1;
+ int whichfork;
+ bool need_alloc;
if (XFS_FORCED_SHUTDOWN(mp))
return -EIO;
+ whichfork = (type == XFS_IO_COW ? XFS_COW_FORK : XFS_DATA_FORK);
+ need_alloc = (type == XFS_IO_DELALLOC);
+
if (type == XFS_IO_UNWRITTEN)
bmapi_flags |= XFS_BMAPI_IGSTATE;
@@ -328,16 +333,29 @@ xfs_map_blocks(
count = mp->m_super->s_maxbytes - offset;
end_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count);
offset_fsb = XFS_B_TO_FSBT(mp, offset);
- error = xfs_bmapi_read(ip, offset_fsb, end_fsb - offset_fsb,
- imap, &nimaps, bmapi_flags);
+
+ if (type == XFS_IO_COW)
+ error = xfs_reflink_find_cow_mapping(ip, offset, imap,
+ &need_alloc);
+ else {
+ error = xfs_bmapi_read(ip, offset_fsb, end_fsb - offset_fsb,
+ imap, &nimaps, bmapi_flags);
+ /*
+ * Truncate an overwrite extent if there's a pending CoW
+ * reservation before the end of this extent. This forces us
+ * to come back to writepage to take care of the CoW.
+ */
+ if (nimaps && type == XFS_IO_OVERWRITE)
+ xfs_reflink_trim_irec_to_next_cow(ip, offset_fsb, imap);
+ }
xfs_iunlock(ip, XFS_ILOCK_SHARED);
if (error)
return error;
- if (type == XFS_IO_DELALLOC &&
+ if (need_alloc &&
(!nimaps || isnullstartblock(imap->br_startblock))) {
- error = xfs_iomap_write_allocate(ip, XFS_DATA_FORK, offset,
+ error = xfs_iomap_write_allocate(ip, whichfork, offset,
imap);
if (!error)
trace_xfs_map_blocks_alloc(ip, offset, count, type,
@@ -625,7 +643,8 @@ xfs_check_page_type(
if (type == XFS_IO_DELALLOC)
return true;
} else if (buffer_dirty(bh) && buffer_mapped(bh)) {
- if (type == XFS_IO_OVERWRITE)
+ if (type == XFS_IO_OVERWRITE ||
+ type == XFS_IO_COW)
return true;
}
@@ -637,6 +656,26 @@ xfs_check_page_type(
return false;
}
+/*
+ * Figure out if CoW is pending at this offset.
+ */
+static bool
+xfs_is_cow_io(
+ struct xfs_inode *ip,
+ xfs_off_t offset)
+{
+ bool is_cow;
+
+ if (!xfs_sb_version_hasreflink(&ip->i_mount->m_sb))
+ return false;
+
+ xfs_ilock(ip, XFS_ILOCK_SHARED);
+ is_cow = xfs_reflink_is_cow_pending(ip, offset);
+ xfs_iunlock(ip, XFS_ILOCK_SHARED);
+
+ return is_cow;
+}
+
STATIC void
xfs_vm_invalidatepage(
struct page *page,
@@ -745,6 +784,7 @@ xfs_writepage_map(
int error = 0;
int count = 0;
int uptodate = 1;
+ unsigned int new_type;
bh = head = page_buffers(page);
offset = page_offset(page);
@@ -776,8 +816,11 @@ xfs_writepage_map(
wpc->imap_valid = false;
}
} else if (buffer_uptodate(bh)) {
- if (wpc->io_type != XFS_IO_OVERWRITE) {
- wpc->io_type = XFS_IO_OVERWRITE;
+ new_type = xfs_is_cow_io(XFS_I(inode), offset) ?
+ XFS_IO_COW : XFS_IO_OVERWRITE;
+
+ if (wpc->io_type != new_type) {
+ wpc->io_type = new_type;
wpc->imap_valid = false;
}
} else {
diff --git a/fs/xfs/xfs_aops.h b/fs/xfs/xfs_aops.h
index 814aab7..ee64d57 100644
--- a/fs/xfs/xfs_aops.h
+++ b/fs/xfs/xfs_aops.h
@@ -28,13 +28,15 @@ enum {
XFS_IO_DELALLOC, /* covers delalloc region */
XFS_IO_UNWRITTEN, /* covers allocated but uninitialized data */
XFS_IO_OVERWRITE, /* covers already allocated extent */
+ XFS_IO_COW, /* covers copy-on-write extent */
};
#define XFS_IO_TYPES \
{ XFS_IO_INVALID, "invalid" }, \
{ XFS_IO_DELALLOC, "delalloc" }, \
{ XFS_IO_UNWRITTEN, "unwritten" }, \
- { XFS_IO_OVERWRITE, "overwrite" }
+ { XFS_IO_OVERWRITE, "overwrite" }, \
+ { XFS_IO_COW, "CoW" }
/*
* Structure for buffered I/O completions.
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
index 112d86b..f0a9e42 100644
--- a/fs/xfs/xfs_reflink.c
+++ b/fs/xfs/xfs_reflink.c
@@ -270,3 +270,109 @@ xfs_reflink_reserve_cow_range(
trace_xfs_reflink_reserve_cow_range_error(ip, error, _RET_IP_);
return error;
}
+
+/*
+ * Determine if there's a CoW reservation at a byte offset of an inode.
+ */
+bool
+xfs_reflink_is_cow_pending(
+ struct xfs_inode *ip,
+ xfs_off_t offset)
+{
+ struct xfs_ifork *ifp;
+ struct xfs_bmbt_rec_host *gotp;
+ struct xfs_bmbt_irec irec;
+ xfs_fileoff_t bno;
+ xfs_extnum_t idx;
+
+ if (!xfs_is_reflink_inode(ip))
+ return false;
+
+ ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
+ bno = XFS_B_TO_FSBT(ip->i_mount, offset);
+ gotp = xfs_iext_bno_to_ext(ifp, bno, &idx);
+
+ if (!gotp)
+ return false;
+
+ xfs_bmbt_get_all(gotp, &irec);
+ if (bno >= irec.br_startoff + irec.br_blockcount ||
+ bno < irec.br_startoff)
+ return false;
+ return true;
+}
+
+/*
+ * Find the CoW reservation (and whether or not it needs block allocation)
+ * for a given byte offset of a file.
+ */
+int
+xfs_reflink_find_cow_mapping(
+ struct xfs_inode *ip,
+ xfs_off_t offset,
+ struct xfs_bmbt_irec *imap,
+ bool *need_alloc)
+{
+ struct xfs_bmbt_irec irec;
+ struct xfs_ifork *ifp;
+ struct xfs_bmbt_rec_host *gotp;
+ xfs_fileoff_t bno;
+ xfs_extnum_t idx;
+
+ /* Find the extent in the CoW fork. */
+ ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
+ bno = XFS_B_TO_FSBT(ip->i_mount, offset);
+ gotp = xfs_iext_bno_to_ext(ifp, bno, &idx);
+ xfs_bmbt_get_all(gotp, &irec);
+
+ trace_xfs_reflink_find_cow_mapping(ip, offset, 1, XFS_IO_OVERWRITE,
+ &irec);
+
+ /* If it's still delalloc, we must allocate later. */
+ *imap = irec;
+ *need_alloc = !!(isnullstartblock(irec.br_startblock));
+
+ return 0;
+}
+
+/*
+ * Trim an extent to end at the next CoW reservation past offset_fsb.
+ */
+int
+xfs_reflink_trim_irec_to_next_cow(
+ struct xfs_inode *ip,
+ xfs_fileoff_t offset_fsb,
+ struct xfs_bmbt_irec *imap)
+{
+ struct xfs_bmbt_irec irec;
+ struct xfs_ifork *ifp;
+ struct xfs_bmbt_rec_host *gotp;
+ xfs_extnum_t idx;
+
+ if (!xfs_is_reflink_inode(ip))
+ return 0;
+
+ /* Find the extent in the CoW fork. */
+ ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
+ gotp = xfs_iext_bno_to_ext(ifp, offset_fsb, &idx);
+ if (!gotp)
+ return 0;
+ xfs_bmbt_get_all(gotp, &irec);
+
+ /* This is the extent before; try sliding up one. */
+ if (irec.br_startoff < offset_fsb) {
+ idx++;
+ if (idx >= ifp->if_bytes / sizeof(xfs_bmbt_rec_t))
+ return 0;
+ gotp = xfs_iext_get_ext(ifp, idx);
+ xfs_bmbt_get_all(gotp, &irec);
+ }
+
+ if (irec.br_startoff >= imap->br_startoff + imap->br_blockcount)
+ return 0;
+
+ imap->br_blockcount = irec.br_startoff - imap->br_startoff;
+ trace_xfs_reflink_trim_irec(ip, imap);
+
+ return 0;
+}
diff --git a/fs/xfs/xfs_reflink.h b/fs/xfs/xfs_reflink.h
index 7b0a215..a2a23f5 100644
--- a/fs/xfs/xfs_reflink.h
+++ b/fs/xfs/xfs_reflink.h
@@ -22,5 +22,10 @@
extern int xfs_reflink_reserve_cow_range(struct xfs_inode *ip, xfs_off_t pos,
xfs_off_t len);
+extern bool xfs_reflink_is_cow_pending(struct xfs_inode *ip, xfs_off_t offset);
+extern int xfs_reflink_find_cow_mapping(struct xfs_inode *ip, xfs_off_t offset,
+ struct xfs_bmbt_irec *imap, bool *need_alloc);
+extern int xfs_reflink_trim_irec_to_next_cow(struct xfs_inode *ip,
+ xfs_fileoff_t offset_fsb, struct xfs_bmbt_irec *imap);
#endif /* __XFS_REFLINK_H */
next prev parent reply other threads:[~2016-06-17 1:26 UTC|newest]
Thread overview: 236+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-17 1:17 [PATCH v6 000/119] xfs: add reverse mapping, reflink, dedupe, and online scrub support Darrick J. Wong
2016-06-17 1:17 ` [PATCH 001/119] vfs: fix return type of ioctl_file_dedupe_range Darrick J. Wong
2016-06-17 11:32 ` Christoph Hellwig
2016-06-28 19:19 ` Darrick J. Wong
2016-06-17 1:18 ` [PATCH 002/119] vfs: support FS_XFLAG_REFLINK and FS_XFLAG_COWEXTSIZE Darrick J. Wong
2016-06-17 11:41 ` Christoph Hellwig
2016-06-17 12:16 ` Brian Foster
2016-06-17 15:06 ` Christoph Hellwig
2016-06-17 16:54 ` Darrick J. Wong
2016-06-17 17:38 ` Brian Foster
2016-06-17 1:18 ` [PATCH 003/119] xfs: check offsets of variable length structures Darrick J. Wong
2016-06-17 11:33 ` Christoph Hellwig
2016-06-17 17:34 ` Brian Foster
2016-06-18 18:01 ` Darrick J. Wong
2016-06-20 12:38 ` Brian Foster
2016-06-17 1:18 ` [PATCH 004/119] xfs: enable buffer deadlock postmortem diagnosis via ftrace Darrick J. Wong
2016-06-17 11:34 ` Christoph Hellwig
2016-06-21 0:47 ` Dave Chinner
2016-06-17 1:18 ` [PATCH 005/119] xfs: check for a valid error_tag in errortag_add Darrick J. Wong
2016-06-17 11:34 ` Christoph Hellwig
2016-06-17 1:18 ` [PATCH 006/119] xfs: port differences from xfsprogs libxfs Darrick J. Wong
2016-06-17 15:06 ` Christoph Hellwig
2016-06-20 0:21 ` Dave Chinner
2016-07-13 23:39 ` Darrick J. Wong
2016-06-17 1:18 ` [PATCH 007/119] xfs: rearrange xfs_bmap_add_free parameters Darrick J. Wong
2016-06-17 11:39 ` Christoph Hellwig
2016-06-17 1:18 ` [PATCH 008/119] xfs: separate freelist fixing into a separate helper Darrick J. Wong
2016-06-17 11:52 ` Christoph Hellwig
2016-06-21 0:48 ` Dave Chinner
2016-06-21 1:40 ` Dave Chinner
2016-06-17 1:18 ` [PATCH 009/119] xfs: convert list of extents to free into a regular list Darrick J. Wong
2016-06-17 11:59 ` Christoph Hellwig
2016-06-18 20:15 ` Darrick J. Wong
2016-06-21 0:57 ` Dave Chinner
2016-06-17 1:18 ` [PATCH 010/119] xfs: create a standard btree size calculator code Darrick J. Wong
2016-06-20 14:31 ` Brian Foster
2016-06-20 19:34 ` Darrick J. Wong
2016-06-17 1:19 ` [PATCH 011/119] xfs: refactor btree maxlevels computation Darrick J. Wong
2016-06-20 14:31 ` Brian Foster
2016-06-20 18:23 ` Darrick J. Wong
2016-06-17 1:19 ` [PATCH 012/119] xfs: during btree split, save new block key & ptr for future insertion Darrick J. Wong
2016-06-21 13:00 ` Brian Foster
2016-06-27 22:30 ` Darrick J. Wong
2016-06-28 12:31 ` Brian Foster
2016-06-17 1:19 ` [PATCH 013/119] xfs: support btrees with overlapping intervals for keys Darrick J. Wong
2016-06-22 15:17 ` Brian Foster
2016-06-28 3:26 ` Darrick J. Wong
2016-06-28 12:32 ` Brian Foster
2016-06-28 17:36 ` Darrick J. Wong
2016-07-06 4:59 ` Dave Chinner
2016-07-06 8:09 ` Darrick J. Wong
2016-06-17 1:19 ` [PATCH 014/119] xfs: introduce interval queries on btrees Darrick J. Wong
2016-06-22 15:18 ` Brian Foster
2016-06-27 21:07 ` Darrick J. Wong
2016-06-28 12:32 ` Brian Foster
2016-06-28 16:29 ` Darrick J. Wong
2016-06-17 1:19 ` [PATCH 015/119] xfs: refactor btree owner change into a separate visit-blocks function Darrick J. Wong
2016-06-23 17:19 ` Brian Foster
2016-06-17 1:19 ` [PATCH 016/119] xfs: move deferred operations into a separate file Darrick J. Wong
2016-06-27 13:14 ` Brian Foster
2016-06-27 19:14 ` Darrick J. Wong
2016-06-28 12:32 ` Brian Foster
2016-06-28 18:51 ` Darrick J. Wong
2016-06-17 1:19 ` [PATCH 017/119] xfs: add tracepoints for the deferred ops mechanism Darrick J. Wong
2016-06-27 13:15 ` Brian Foster
2016-06-17 1:19 ` [PATCH 018/119] xfs: enable the xfs_defer mechanism to process extents to free Darrick J. Wong
2016-06-27 13:15 ` Brian Foster
2016-06-27 21:41 ` Darrick J. Wong
2016-06-27 22:00 ` Darrick J. Wong
2016-06-28 12:32 ` Brian Foster
2016-06-28 16:33 ` Darrick J. Wong
2016-06-17 1:19 ` [PATCH 019/119] xfs: rework xfs_bmap_free callers to use xfs_defer_ops Darrick J. Wong
2016-06-17 1:20 ` [PATCH 020/119] xfs: change xfs_bmap_{finish, cancel, init, free} -> xfs_defer_* Darrick J. Wong
2016-06-30 0:11 ` Darrick J. Wong
2016-06-17 1:20 ` [PATCH 021/119] xfs: rename flist/free_list to dfops Darrick J. Wong
2016-06-17 1:20 ` [PATCH 022/119] xfs: add tracepoints and error injection for deferred extent freeing Darrick J. Wong
2016-06-17 1:20 ` [PATCH 023/119] xfs: introduce rmap btree definitions Darrick J. Wong
2016-06-30 17:32 ` Brian Foster
2016-06-17 1:20 ` [PATCH 024/119] xfs: add rmap btree stats infrastructure Darrick J. Wong
2016-06-30 17:32 ` Brian Foster
2016-06-17 1:20 ` [PATCH 025/119] xfs: rmap btree add more reserved blocks Darrick J. Wong
2016-06-30 17:32 ` Brian Foster
2016-06-17 1:20 ` [PATCH 026/119] xfs: add owner field to extent allocation and freeing Darrick J. Wong
2016-07-06 4:01 ` Dave Chinner
2016-07-06 6:44 ` Darrick J. Wong
2016-07-07 15:12 ` Brian Foster
2016-07-07 19:09 ` Darrick J. Wong
2016-07-07 22:55 ` Dave Chinner
2016-07-08 11:37 ` Brian Foster
2016-06-17 1:20 ` [PATCH 027/119] xfs: introduce rmap extent operation stubs Darrick J. Wong
2016-06-17 1:20 ` [PATCH 028/119] xfs: define the on-disk rmap btree format Darrick J. Wong
2016-07-06 4:05 ` Dave Chinner
2016-07-06 6:44 ` Darrick J. Wong
2016-07-07 18:41 ` Brian Foster
2016-07-07 19:18 ` Darrick J. Wong
2016-07-07 23:14 ` Dave Chinner
2016-07-07 23:58 ` Darrick J. Wong
2016-06-17 1:20 ` [PATCH 029/119] xfs: add rmap btree growfs support Darrick J. Wong
2016-06-17 1:21 ` [PATCH 030/119] xfs: rmap btree transaction reservations Darrick J. Wong
2016-07-08 13:21 ` Brian Foster
2016-06-17 1:21 ` [PATCH 031/119] xfs: rmap btree requires more reserved free space Darrick J. Wong
2016-07-08 13:21 ` Brian Foster
2016-07-13 16:50 ` Darrick J. Wong
2016-07-13 18:32 ` Brian Foster
2016-07-13 23:50 ` Dave Chinner
2016-06-17 1:21 ` [PATCH 032/119] xfs: add rmap btree operations Darrick J. Wong
2016-07-08 18:33 ` Brian Foster
2016-07-08 23:53 ` Darrick J. Wong
2016-06-17 1:21 ` [PATCH 033/119] xfs: support overlapping intervals in the rmap btree Darrick J. Wong
2016-07-08 18:33 ` Brian Foster
2016-07-09 0:14 ` Darrick J. Wong
2016-07-09 13:25 ` Brian Foster
2016-06-17 1:21 ` [PATCH 034/119] xfs: teach rmapbt to support interval queries Darrick J. Wong
2016-07-08 18:34 ` Brian Foster
2016-07-09 0:16 ` Darrick J. Wong
2016-07-09 13:25 ` Brian Foster
2016-06-17 1:21 ` [PATCH 035/119] xfs: add tracepoints for the rmap functions Darrick J. Wong
2016-07-08 18:34 ` Brian Foster
2016-06-17 1:21 ` [PATCH 036/119] xfs: add an extent to the rmap btree Darrick J. Wong
2016-07-11 18:49 ` Brian Foster
2016-07-11 23:01 ` Darrick J. Wong
2016-06-17 1:21 ` [PATCH 037/119] xfs: remove an extent from " Darrick J. Wong
2016-07-11 18:49 ` Brian Foster
2016-06-17 1:21 ` [PATCH 038/119] xfs: convert unwritten status of reverse mappings Darrick J. Wong
2016-06-30 0:15 ` Darrick J. Wong
2016-07-13 18:27 ` Brian Foster
2016-07-13 20:43 ` Darrick J. Wong
2016-06-17 1:22 ` [PATCH 039/119] xfs: add rmap btree insert and delete helpers Darrick J. Wong
2016-07-13 18:28 ` Brian Foster
2016-07-13 18:37 ` Darrick J. Wong
2016-07-13 18:42 ` Brian Foster
2016-06-17 1:22 ` [PATCH 040/119] xfs: create helpers for mapping, unmapping, and converting file fork extents Darrick J. Wong
2016-07-13 18:28 ` Brian Foster
2016-07-13 18:47 ` Darrick J. Wong
2016-07-13 23:54 ` Dave Chinner
2016-07-13 23:55 ` Darrick J. Wong
2016-06-17 1:22 ` [PATCH 041/119] xfs: create rmap update intent log items Darrick J. Wong
2016-07-15 18:33 ` Brian Foster
2016-07-16 7:10 ` Darrick J. Wong
2016-06-17 1:22 ` [PATCH 042/119] xfs: log rmap intent items Darrick J. Wong
2016-07-15 18:33 ` Brian Foster
2016-07-16 7:34 ` Darrick J. Wong
2016-07-18 12:55 ` Brian Foster
2016-07-19 17:10 ` Darrick J. Wong
2016-06-17 1:22 ` [PATCH 043/119] xfs: enable the xfs_defer mechanism to process rmaps to update Darrick J. Wong
2016-07-15 18:33 ` Brian Foster
2016-06-17 1:22 ` [PATCH 044/119] xfs: propagate bmap updates to rmapbt Darrick J. Wong
2016-07-15 18:33 ` Brian Foster
2016-07-16 7:26 ` Darrick J. Wong
2016-07-18 1:21 ` Dave Chinner
2016-07-18 12:56 ` Brian Foster
2016-07-18 12:55 ` Brian Foster
2016-07-19 1:53 ` Darrick J. Wong
2016-07-19 11:37 ` Brian Foster
2016-06-17 1:22 ` [PATCH 045/119] xfs: add rmap btree geometry feature flag Darrick J. Wong
2016-07-18 13:34 ` Brian Foster
2016-06-17 1:22 ` [PATCH 046/119] xfs: add rmap btree block detection to log recovery Darrick J. Wong
2016-07-18 13:34 ` Brian Foster
2016-06-17 1:22 ` [PATCH 047/119] xfs: disable XFS_IOC_SWAPEXT when rmap btree is enabled Darrick J. Wong
2016-07-18 13:34 ` Brian Foster
2016-07-18 16:18 ` Darrick J. Wong
2016-06-17 1:22 ` [PATCH 048/119] xfs: don't update rmapbt when fixing agfl Darrick J. Wong
2016-07-18 13:34 ` Brian Foster
2016-07-18 15:53 ` Darrick J. Wong
2016-06-17 1:23 ` [PATCH 049/119] xfs: enable the rmap btree functionality Darrick J. Wong
2016-07-18 13:34 ` Brian Foster
2016-06-17 1:23 ` [PATCH 050/119] xfs: count the blocks in a btree Darrick J. Wong
2016-06-17 1:23 ` [PATCH 051/119] xfs: introduce tracepoints for AG reservation code Darrick J. Wong
2016-06-17 1:23 ` [PATCH 052/119] xfs: set up per-AG free space reservations Darrick J. Wong
2016-06-17 1:23 ` [PATCH 053/119] xfs: define tracepoints for refcount btree activities Darrick J. Wong
2016-06-17 1:23 ` [PATCH 054/119] xfs: introduce refcount btree definitions Darrick J. Wong
2016-06-17 1:23 ` [PATCH 055/119] xfs: add refcount btree stats infrastructure Darrick J. Wong
2016-06-17 1:23 ` [PATCH 056/119] xfs: refcount btree add more reserved blocks Darrick J. Wong
2016-06-17 1:23 ` [PATCH 057/119] xfs: define the on-disk refcount btree format Darrick J. Wong
2016-06-17 1:24 ` [PATCH 058/119] xfs: add refcount btree support to growfs Darrick J. Wong
2016-06-17 1:24 ` [PATCH 059/119] xfs: account for the refcount btree in the alloc/free log reservation Darrick J. Wong
2016-06-17 1:24 ` [PATCH 060/119] xfs: add refcount btree operations Darrick J. Wong
2016-06-17 1:24 ` [PATCH 061/119] xfs: create refcount update intent log items Darrick J. Wong
2016-06-17 1:24 ` [PATCH 062/119] xfs: log refcount intent items Darrick J. Wong
2016-06-17 1:24 ` [PATCH 063/119] xfs: adjust refcount of an extent of blocks in refcount btree Darrick J. Wong
2016-06-17 1:24 ` [PATCH 064/119] xfs: connect refcount adjust functions to upper layers Darrick J. Wong
2016-06-17 1:24 ` [PATCH 065/119] xfs: adjust refcount when unmapping file blocks Darrick J. Wong
2016-06-17 1:24 ` [PATCH 066/119] xfs: add refcount btree block detection to log recovery Darrick J. Wong
2016-06-17 1:25 ` [PATCH 067/119] xfs: refcount btree requires more reserved space Darrick J. Wong
2016-06-17 1:25 ` [PATCH 068/119] xfs: introduce reflink utility functions Darrick J. Wong
2016-06-17 1:25 ` [PATCH 069/119] xfs: create bmbt update intent log items Darrick J. Wong
2016-06-17 1:25 ` [PATCH 070/119] xfs: log bmap intent items Darrick J. Wong
2016-06-17 1:25 ` [PATCH 071/119] xfs: map an inode's offset to an exact physical block Darrick J. Wong
2016-06-17 1:25 ` [PATCH 072/119] xfs: implement deferred bmbt map/unmap operations Darrick J. Wong
2016-06-17 1:25 ` [PATCH 073/119] xfs: return work remaining at the end of a bunmapi operation Darrick J. Wong
2016-06-17 1:25 ` [PATCH 074/119] xfs: define tracepoints for reflink activities Darrick J. Wong
2016-06-17 1:25 ` [PATCH 075/119] xfs: add reflink feature flag to geometry Darrick J. Wong
2016-06-17 1:25 ` [PATCH 076/119] xfs: don't allow reflinked dir/dev/fifo/socket/pipe files Darrick J. Wong
2016-06-17 1:26 ` [PATCH 077/119] xfs: introduce the CoW fork Darrick J. Wong
2016-06-17 1:26 ` [PATCH 078/119] xfs: support bmapping delalloc extents in " Darrick J. Wong
2016-06-17 1:26 ` [PATCH 079/119] xfs: create delalloc extents in " Darrick J. Wong
2016-06-17 1:26 ` [PATCH 080/119] xfs: support allocating delayed " Darrick J. Wong
2016-06-17 1:26 ` Darrick J. Wong [this message]
2016-06-17 1:26 ` [PATCH 082/119] xfs: support removing extents from " Darrick J. Wong
2016-06-17 1:26 ` [PATCH 083/119] xfs: move mappings from cow fork to data fork after copy-write Darrick J. Wong
2016-06-17 1:26 ` [PATCH 084/119] xfs: implement CoW for directio writes Darrick J. Wong
2016-06-17 1:26 ` [PATCH 085/119] xfs: copy-on-write reflinked blocks when zeroing ranges of blocks Darrick J. Wong
2016-06-17 1:27 ` [PATCH 086/119] xfs: cancel CoW reservations and clear inode reflink flag when freeing blocks Darrick J. Wong
2016-06-17 1:27 ` [PATCH 087/119] xfs: cancel pending CoW reservations when destroying inodes Darrick J. Wong
2016-06-17 1:27 ` [PATCH 088/119] xfs: store in-progress CoW allocations in the refcount btree Darrick J. Wong
2016-06-17 1:27 ` [PATCH 089/119] xfs: reflink extents from one file to another Darrick J. Wong
2016-06-17 1:27 ` [PATCH 090/119] xfs: add clone file and clone range vfs functions Darrick J. Wong
2016-06-17 1:27 ` [PATCH 091/119] xfs: add dedupe range vfs function Darrick J. Wong
2016-06-17 1:27 ` [PATCH 092/119] xfs: teach get_bmapx and fiemap about shared extents and the CoW fork Darrick J. Wong
2016-06-17 1:27 ` [PATCH 093/119] xfs: swap inode reflink flags when swapping inode extents Darrick J. Wong
2016-06-17 1:27 ` [PATCH 094/119] xfs: unshare a range of blocks via fallocate Darrick J. Wong
2016-06-17 1:28 ` [PATCH 095/119] xfs: CoW shared EOF block when truncating file Darrick J. Wong
2016-06-17 1:28 ` [PATCH 096/119] xfs: support FS_XFLAG_REFLINK on reflink filesystems Darrick J. Wong
2016-06-17 1:28 ` [PATCH 097/119] xfs: create a separate cow extent size hint for the allocator Darrick J. Wong
2016-06-17 1:28 ` [PATCH 098/119] xfs: preallocate blocks for worst-case btree expansion Darrick J. Wong
2016-06-17 1:28 ` [PATCH 099/119] xfs: don't allow reflink when the AG is low on space Darrick J. Wong
2016-06-17 1:28 ` [PATCH 100/119] xfs: try other AGs to allocate a BMBT block Darrick J. Wong
2016-06-17 1:28 ` [PATCH 101/119] xfs: promote buffered writes to CoW when cowextsz is set Darrick J. Wong
2016-06-17 1:28 ` [PATCH 102/119] xfs: garbage collect old cowextsz reservations Darrick J. Wong
2016-06-17 1:28 ` [PATCH 103/119] xfs: provide switch to force filesystem to copy-on-write all the time Darrick J. Wong
2016-06-17 1:29 ` [PATCH 104/119] xfs: increase log reservations for reflink Darrick J. Wong
2016-06-17 1:29 ` [PATCH 105/119] xfs: use interval query for rmap alloc operations on shared files Darrick J. Wong
2016-06-17 1:29 ` [PATCH 106/119] xfs: convert unwritten status of reverse mappings for " Darrick J. Wong
2016-06-17 1:29 ` [PATCH 107/119] xfs: set a default CoW extent size of 32 blocks Darrick J. Wong
2016-06-17 1:29 ` [PATCH 108/119] xfs: don't allow realtime and reflinked files to mix Darrick J. Wong
2016-06-17 1:29 ` [PATCH 109/119] xfs: don't mix reflink and DAX mode for now Darrick J. Wong
2016-06-17 1:29 ` [PATCH 110/119] xfs: fail ->bmap for reflink inodes Darrick J. Wong
2016-06-17 1:29 ` [PATCH 111/119] xfs: recognize the reflink feature bit Darrick J. Wong
2016-06-17 1:29 ` [PATCH 112/119] xfs: introduce the XFS_IOC_GETFSMAPX ioctl Darrick J. Wong
2016-06-17 1:30 ` [PATCH 113/119] xfs: scrub btree records and pointers while querying Darrick J. Wong
2016-06-17 1:30 ` [PATCH 114/119] xfs: create sysfs hooks to scrub various files Darrick J. Wong
2016-06-17 1:30 ` [PATCH 115/119] xfs: support scrubbing free space btrees Darrick J. Wong
2016-06-17 1:30 ` [PATCH 116/119] xfs: support scrubbing inode btrees Darrick J. Wong
2016-06-17 1:30 ` [PATCH 117/119] xfs: support scrubbing rmap btree Darrick J. Wong
2016-06-17 1:30 ` [PATCH 118/119] xfs: support scrubbing refcount btree Darrick J. Wong
2016-06-17 1:30 ` [PATCH 119/119] xfs: add btree scrub tracepoints Darrick J. Wong
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