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authorLinus Torvalds <torvalds@linux-foundation.org>2019-10-10 11:47:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-10-10 11:47:16 -0700
commit9e208aa06c2109b45eec6be049a8e47034748c20 (patch)
tree6f7a07ee2cc3c5558b7b39ef310f115a72825db6 /fs
parentfb20da6af705597cefcf05fc99e48d5c066dbdff (diff)
parentaeea4b75f045294e1c026acc380466daa43afc65 (diff)
Merge tag 'xfs-5.4-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong: "A couple of small code cleanups and bug fixes for rounding errors, metadata logging errors, and an extra layer of safeguards against leaking memory contents. - Fix a rounding error in the fallocate code - Minor code cleanups - Make sure to zero memory buffers before formatting metadata blocks - Fix a few places where we forgot to log an inode metadata update - Remove broken error handling that tried to clean up after a failure but still got it wrong" * tag 'xfs-5.4-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: move local to extent inode logging into bmap helper xfs: remove broken error handling on failed attr sf to leaf change xfs: log the inode on directory sf to block format change xfs: assure zeroed memory buffers for certain kmem allocations xfs: removed unused error variable from xchk_refcountbt_rec xfs: remove unused flags arg from xfs_get_aghdr_buf() xfs: Fix tail rounding in xfs_alloc_file_space()
Diffstat (limited to 'fs')
-rw-r--r--fs/xfs/libxfs/xfs_ag.c5
-rw-r--r--fs/xfs/libxfs/xfs_attr_leaf.c21
-rw-r--r--fs/xfs/libxfs/xfs_bmap.c6
-rw-r--r--fs/xfs/libxfs/xfs_bmap.h3
-rw-r--r--fs/xfs/libxfs/xfs_dir2_block.c2
-rw-r--r--fs/xfs/scrub/refcount.c3
-rw-r--r--fs/xfs/xfs_bmap_util.c4
-rw-r--r--fs/xfs/xfs_buf.c12
-rw-r--r--fs/xfs/xfs_log.c2
-rw-r--r--fs/xfs/xfs_log_recover.c2
10 files changed, 29 insertions, 31 deletions
diff --git a/fs/xfs/libxfs/xfs_ag.c b/fs/xfs/libxfs/xfs_ag.c
index 5de296b34ab1..14fbdf22b7e7 100644
--- a/fs/xfs/libxfs/xfs_ag.c
+++ b/fs/xfs/libxfs/xfs_ag.c
@@ -28,12 +28,11 @@ xfs_get_aghdr_buf(
struct xfs_mount *mp,
xfs_daddr_t blkno,
size_t numblks,
- int flags,
const struct xfs_buf_ops *ops)
{
struct xfs_buf *bp;
- bp = xfs_buf_get_uncached(mp->m_ddev_targp, numblks, flags);
+ bp = xfs_buf_get_uncached(mp->m_ddev_targp, numblks, 0);
if (!bp)
return NULL;
@@ -345,7 +344,7 @@ xfs_ag_init_hdr(
{
struct xfs_buf *bp;
- bp = xfs_get_aghdr_buf(mp, id->daddr, id->numblks, 0, ops);
+ bp = xfs_get_aghdr_buf(mp, id->daddr, id->numblks, ops);
if (!bp)
return -ENOMEM;
diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
index b9f019603d0b..f0089e862216 100644
--- a/fs/xfs/libxfs/xfs_attr_leaf.c
+++ b/fs/xfs/libxfs/xfs_attr_leaf.c
@@ -826,32 +826,17 @@ xfs_attr_shortform_to_leaf(
sf = (xfs_attr_shortform_t *)tmpbuffer;
xfs_idata_realloc(dp, -size, XFS_ATTR_FORK);
- xfs_bmap_local_to_extents_empty(dp, XFS_ATTR_FORK);
+ xfs_bmap_local_to_extents_empty(args->trans, dp, XFS_ATTR_FORK);
bp = NULL;
error = xfs_da_grow_inode(args, &blkno);
- if (error) {
- /*
- * If we hit an IO error middle of the transaction inside
- * grow_inode(), we may have inconsistent data. Bail out.
- */
- if (error == -EIO)
- goto out;
- xfs_idata_realloc(dp, size, XFS_ATTR_FORK); /* try to put */
- memcpy(ifp->if_u1.if_data, tmpbuffer, size); /* it back */
+ if (error)
goto out;
- }
ASSERT(blkno == 0);
error = xfs_attr3_leaf_create(args, blkno, &bp);
- if (error) {
- /* xfs_attr3_leaf_create may not have instantiated a block */
- if (bp && (xfs_da_shrink_inode(args, 0, bp) != 0))
- goto out;
- xfs_idata_realloc(dp, size, XFS_ATTR_FORK); /* try to put */
- memcpy(ifp->if_u1.if_data, tmpbuffer, size); /* it back */
+ if (error)
goto out;
- }
memset((char *)&nargs, 0, sizeof(nargs));
nargs.dp = dp;
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 4edc25a2ba80..02469d59c787 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -792,6 +792,7 @@ out_root_realloc:
*/
void
xfs_bmap_local_to_extents_empty(
+ struct xfs_trans *tp,
struct xfs_inode *ip,
int whichfork)
{
@@ -808,6 +809,7 @@ xfs_bmap_local_to_extents_empty(
ifp->if_u1.if_root = NULL;
ifp->if_height = 0;
XFS_IFORK_FMT_SET(ip, whichfork, XFS_DINODE_FMT_EXTENTS);
+ xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
}
@@ -840,7 +842,7 @@ xfs_bmap_local_to_extents(
ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL);
if (!ifp->if_bytes) {
- xfs_bmap_local_to_extents_empty(ip, whichfork);
+ xfs_bmap_local_to_extents_empty(tp, ip, whichfork);
flags = XFS_ILOG_CORE;
goto done;
}
@@ -887,7 +889,7 @@ xfs_bmap_local_to_extents(
/* account for the change in fork size */
xfs_idata_realloc(ip, -ifp->if_bytes, whichfork);
- xfs_bmap_local_to_extents_empty(ip, whichfork);
+ xfs_bmap_local_to_extents_empty(tp, ip, whichfork);
flags |= XFS_ILOG_CORE;
ifp->if_u1.if_root = NULL;
diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h
index 5bb446d80542..e2798c6f3a5f 100644
--- a/fs/xfs/libxfs/xfs_bmap.h
+++ b/fs/xfs/libxfs/xfs_bmap.h
@@ -182,7 +182,8 @@ void xfs_trim_extent(struct xfs_bmbt_irec *irec, xfs_fileoff_t bno,
xfs_filblks_t len);
int xfs_bmap_add_attrfork(struct xfs_inode *ip, int size, int rsvd);
int xfs_bmap_set_attrforkoff(struct xfs_inode *ip, int size, int *version);
-void xfs_bmap_local_to_extents_empty(struct xfs_inode *ip, int whichfork);
+void xfs_bmap_local_to_extents_empty(struct xfs_trans *tp,
+ struct xfs_inode *ip, int whichfork);
void __xfs_bmap_add_free(struct xfs_trans *tp, xfs_fsblock_t bno,
xfs_filblks_t len, const struct xfs_owner_info *oinfo,
bool skip_discard);
diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c
index 9595ced393dc..49e4bc39e7bb 100644
--- a/fs/xfs/libxfs/xfs_dir2_block.c
+++ b/fs/xfs/libxfs/xfs_dir2_block.c
@@ -1096,7 +1096,7 @@ xfs_dir2_sf_to_block(
memcpy(sfp, oldsfp, ifp->if_bytes);
xfs_idata_realloc(dp, -ifp->if_bytes, XFS_DATA_FORK);
- xfs_bmap_local_to_extents_empty(dp, XFS_DATA_FORK);
+ xfs_bmap_local_to_extents_empty(tp, dp, XFS_DATA_FORK);
dp->i_d.di_size = 0;
/*
diff --git a/fs/xfs/scrub/refcount.c b/fs/xfs/scrub/refcount.c
index 93b3793bc5b3..0cab11a5d390 100644
--- a/fs/xfs/scrub/refcount.c
+++ b/fs/xfs/scrub/refcount.c
@@ -341,7 +341,6 @@ xchk_refcountbt_rec(
xfs_extlen_t len;
xfs_nlink_t refcount;
bool has_cowflag;
- int error = 0;
bno = be32_to_cpu(rec->refc.rc_startblock);
len = be32_to_cpu(rec->refc.rc_blockcount);
@@ -366,7 +365,7 @@ xchk_refcountbt_rec(
xchk_refcountbt_xref(bs->sc, bno, len, refcount);
- return error;
+ return 0;
}
/* Make sure we have as many refc blocks as the rmap says. */
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 0910cb75b65d..4f443703065e 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -864,6 +864,7 @@ xfs_alloc_file_space(
xfs_filblks_t allocatesize_fsb;
xfs_extlen_t extsz, temp;
xfs_fileoff_t startoffset_fsb;
+ xfs_fileoff_t endoffset_fsb;
int nimaps;
int quota_flag;
int rt;
@@ -891,7 +892,8 @@ xfs_alloc_file_space(
imapp = &imaps[0];
nimaps = 1;
startoffset_fsb = XFS_B_TO_FSBT(mp, offset);
- allocatesize_fsb = XFS_B_TO_FSB(mp, count);
+ endoffset_fsb = XFS_B_TO_FSB(mp, offset + count);
+ allocatesize_fsb = endoffset_fsb - startoffset_fsb;
/*
* Allocate file space until done or until there is an error
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 21c243622a79..0abba171aa89 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -345,6 +345,15 @@ xfs_buf_allocate_memory(
unsigned short page_count, i;
xfs_off_t start, end;
int error;
+ xfs_km_flags_t kmflag_mask = 0;
+
+ /*
+ * assure zeroed buffer for non-read cases.
+ */
+ if (!(flags & XBF_READ)) {
+ kmflag_mask |= KM_ZERO;
+ gfp_mask |= __GFP_ZERO;
+ }
/*
* for buffers that are contained within a single page, just allocate
@@ -354,7 +363,8 @@ xfs_buf_allocate_memory(
size = BBTOB(bp->b_length);
if (size < PAGE_SIZE) {
int align_mask = xfs_buftarg_dma_alignment(bp->b_target);
- bp->b_addr = kmem_alloc_io(size, align_mask, KM_NOFS);
+ bp->b_addr = kmem_alloc_io(size, align_mask,
+ KM_NOFS | kmflag_mask);
if (!bp->b_addr) {
/* low memory - use alloc_page loop instead */
goto use_alloc_page;
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index a2beee9f74da..641d07f30a27 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1443,7 +1443,7 @@ xlog_alloc_log(
prev_iclog = iclog;
iclog->ic_data = kmem_alloc_io(log->l_iclog_size, align_mask,
- KM_MAYFAIL);
+ KM_MAYFAIL | KM_ZERO);
if (!iclog->ic_data)
goto out_free_iclog;
#ifdef DEBUG
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 508319039dce..c1a514ffff55 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -127,7 +127,7 @@ xlog_alloc_buffer(
if (nbblks > 1 && log->l_sectBBsize > 1)
nbblks += log->l_sectBBsize;
nbblks = round_up(nbblks, log->l_sectBBsize);
- return kmem_alloc_io(BBTOB(nbblks), align_mask, KM_MAYFAIL);
+ return kmem_alloc_io(BBTOB(nbblks), align_mask, KM_MAYFAIL | KM_ZERO);
}
/*