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Import of kernel-5.14.0-687.26.1.el9_8

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This commit is contained in:
almalinux-bot-kernel 2026-07-16 05:07:51 +00:00
parent 3c417b1ec1
commit c5be03ff15
3 changed files with 38 additions and 2 deletions
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0
COPYING-5.14.0-687.25.1.el9 → COPYING-5.14.0-687.26.1.el9
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36
fs/xfs/xfs_reflink.c
View File

@ -389,6 +389,7 @@ xfs_reflink_fill_cow_hole(
struct xfs_mount *mp = ip->i_mount;
struct xfs_trans *tp;
xfs_filblks_t resaligned;
unsigned int seq_before = READ_ONCE(ip->i_df.if_seq);
xfs_extlen_t resblks;
int nimaps;
int error;
@ -408,6 +409,22 @@ xfs_reflink_fill_cow_hole(
*lockmode = XFS_ILOCK_EXCL;
/*
* The data fork mapping may have changed while we dropped the ILOCK
* (a racing O_DIRECT writer under IOLOCK_SHARED can complete a full
* CoW cycle including xfs_reflink_end_cow(), which remaps this offset
* and drops the refcount of the old shared block). Re-read it so the
* shared-status recheck below and the caller's in-place iomap both
* operate on the current mapping rather than a stale physical block.
*/
if (seq_before != READ_ONCE(ip->i_df.if_seq)) {
nimaps = 1;
error = xfs_bmapi_read(ip, imap->br_startoff,
imap->br_blockcount, imap, &nimaps, 0);
if (error)
goto out_trans_cancel;
}
error = xfs_find_trim_cow_extent(ip, imap, cmap, shared, &found);
if (error || !*shared)
goto out_trans_cancel;
@ -454,6 +471,8 @@ xfs_reflink_fill_delalloc(
bool found;
do {
unsigned int seq_before = READ_ONCE(ip->i_df.if_seq);
xfs_iunlock(ip, *lockmode);
*lockmode = 0;
@ -464,6 +483,23 @@ xfs_reflink_fill_delalloc(
*lockmode = XFS_ILOCK_EXCL;
/*
* The data fork mapping may have changed while we dropped the
* ILOCK (a racing O_DIRECT writer under IOLOCK_SHARED can
* complete a full CoW cycle including xfs_reflink_end_cow(),
* which remaps this offset and drops the refcount of the old
* shared block). Re-read it so the shared-status recheck
* below and the caller's in-place iomap both operate on the
* current mapping rather than a stale physical block.
*/
if (seq_before != READ_ONCE(ip->i_df.if_seq)) {
nimaps = 1;
error = xfs_bmapi_read(ip, imap->br_startoff,
imap->br_blockcount, imap, &nimaps, 0);
if (error)
goto out_trans_cancel;
}
error = xfs_find_trim_cow_extent(ip, imap, cmap, shared,
&found);
if (error || !*shared)

4
kernel.sbat
View File

@ -1,3 +1,3 @@
sbat,1,SBAT Version,sbat,1,https://github.com/rhboot/shim/blob/main/SBAT.md
kernel.rhel,1,Red Hat,kernel-core,5.14.0-687.25.1.el9.x86_64,mailto:secalert@redhat.com
kernel.almalinux,1,AlmaLinux,kernel-core,5.14.0-687.25.1.el9.x86_64,mailto:security@almalinux.org
kernel.rhel,1,Red Hat,kernel-core,5.14.0-687.26.1.el9.x86_64,mailto:secalert@redhat.com
kernel.almalinux,1,AlmaLinux,kernel-core,5.14.0-687.26.1.el9.x86_64,mailto:security@almalinux.org