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authorLinus Torvalds <torvalds@linux-foundation.org>2021-09-02 08:26:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-02 08:26:03 -0700
commit90c90cda05aecf0f7c45f9f35384b31bba38455f (patch)
tree6d7e5d0c8fee0d5ccbd2b39e8d5105474487f4ea /fs/xfs/xfs_inode.h
parent4ac6d90867a4de2e12117e755dbd76e08d88697f (diff)
parentf38a032b165d812b0ba8378a5cd237c0888ff65f (diff)
Merge tag 'xfs-5.15-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Darrick Wong: "There's a lot in this cycle. Starting with bug fixes: To avoid livelocks between the logging code and the quota code, we've disabled the ability of quotaoff to turn off quota accounting. (Admins can still disable quota enforcement, but truly turning off accounting requires a remount.) We've tried to do this in a careful enough way that there shouldn't be any user visible effects aside from quotaoff no longer randomly hanging the system. We've also fixed some bugs in runtime log behavior that could trip up log recovery if (otherwise unrelated) transactions manage to start and commit concurrently; some bugs in the GETFSMAP ioctl where we would incorrectly restrict the range of records output if the two xfs devices are of different sizes; a bug that resulted in fallocate funshare failing unnecessarily; and broken behavior in the xfs inode cache when DONTCACHE is in play. As for new features: we now batch inode inactivations in percpu background threads, which sharply decreases frontend thread wait time when performing file deletions and should improve overall directory tree deletion times. This eliminates both the problem where closing an unlinked file (especially on a frozen fs) can stall for a long time, and should also ease complaints about direct reclaim bogging down on unlinked file cleanup. Starting with this release, we've enabled pipelining of the XFS log. On workloads with high rates of metadata updates to different shards of the filesystem, multiple threads can be used to format committed log updates into log checkpoints. Lastly, with this release, two new features have graduated to supported status: inode btree counters (for faster mounts), and support for dates beyond Y2038. Expect these to be enabled by default in a future release of xfsprogs. Summary: - Fix a potential log livelock on busy filesystems when there's so much work going on that we can't finish a quotaoff before filling up the log by removing the ability to disable quota accounting. - Introduce the ability to use per-CPU data structures in XFS so that we can do a better job of maintaining CPU locality for certain operations. - Defer inode inactivation work to per-CPU lists, which will help us batch that processing. Deletions of large sparse files will *appear* to run faster, but all that means is that we've moved the work to the backend. - Drop the EXPERIMENTAL warnings from the y2038+ support and the inode btree counters, since it's been nearly a year and no complaints have come in. - Remove more of our bespoke kmem* variants in favor of using the standard Linux calls. - Prepare for the addition of log incompat features in upcoming cycles by actually adding code to support this. - Small cleanups of the xattr code in preparation for landing support for full logging of extended attribute updates in a future cycle. - Replace the various log shutdown state and flag code all over xfs with a single atomic bit flag. - Fix a serious log recovery bug where log item replay can be skipped based on the start lsn of a transaction even though the transaction commit lsn is the key data point for that by enforcing start lsns to appear in the log in the same order as commit lsns. - Enable pipelining in the code that pushes log items to disk. - Drop ->writepage. - Fix some bugs in GETFSMAP where the last fsmap record reported for a device could extend beyond the end of the device, and a separate bug where query keys for one device could be applied to another. - Don't let GETFSMAP query functions edit their input parameters. - Small cleanups to the scrub code's handling of perag structures. - Small cleanups to the incore inode tree walk code. - Constify btree function parameters that aren't changed, so that there will never again be confusion about range query functions changing their input parameters. - Standardize the format and names of tracepoint data attributes. - Clean up all the mount state and feature flags to use wrapped bitset functions instead of inconsistently open-coded flag checks. - Fix some confusion between xfs_buf hash table key variable vs. block number. - Fix a mis-interaction with iomap where we reported shared delalloc cow fork extents to iomap, which would cause the iomap unshare operation to return IO errors unnecessarily. - Fix DONTCACHE behavior" * tag 'xfs-5.15-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (103 commits) xfs: fix I_DONTCACHE xfs: only set IOMAP_F_SHARED when providing a srcmap to a write xfs: fix perag structure refcounting error when scrub fails xfs: rename buffer cache index variable b_bn xfs: convert bp->b_bn references to xfs_buf_daddr() xfs: introduce xfs_buf_daddr() xfs: kill xfs_sb_version_has_v3inode() xfs: introduce xfs_sb_is_v5 helper xfs: remove unused xfs_sb_version_has wrappers xfs: convert xfs_sb_version_has checks to use mount features xfs: convert scrub to use mount-based feature checks xfs: open code sb verifier feature checks xfs: convert xfs_fs_geometry to use mount feature checks xfs: replace XFS_FORCED_SHUTDOWN with xfs_is_shutdown xfs: convert remaining mount flags to state flags xfs: convert mount flags to features xfs: consolidate mount option features in m_features xfs: replace xfs_sb_version checks with feature flag checks xfs: reflect sb features in xfs_mount xfs: rework attr2 feature and mount options ...
Diffstat (limited to 'fs/xfs/xfs_inode.h')
-rw-r--r--fs/xfs/xfs_inode.h25
1 files changed, 22 insertions, 3 deletions
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index e0ae905554e2..b21b177832d1 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -41,6 +41,7 @@ typedef struct xfs_inode {
struct xfs_inode_log_item *i_itemp; /* logging information */
mrlock_t i_lock; /* inode lock */
atomic_t i_pincount; /* inode pin count */
+ struct llist_node i_gclist; /* deferred inactivation list */
/*
* Bitsets of inode metadata that have been checked and/or are sick.
@@ -239,6 +240,7 @@ static inline bool xfs_inode_has_bigtime(struct xfs_inode *ip)
#define __XFS_IPINNED_BIT 8 /* wakeup key for zero pin count */
#define XFS_IPINNED (1 << __XFS_IPINNED_BIT)
#define XFS_IEOFBLOCKS (1 << 9) /* has the preallocblocks tag set */
+#define XFS_NEED_INACTIVE (1 << 10) /* see XFS_INACTIVATING below */
/*
* If this unlinked inode is in the middle of recovery, don't let drop_inode
* truncate and free the inode. This can happen if we iget the inode during
@@ -248,13 +250,29 @@ static inline bool xfs_inode_has_bigtime(struct xfs_inode *ip)
#define XFS_ICOWBLOCKS (1 << 12)/* has the cowblocks tag set */
/*
+ * If we need to update on-disk metadata before this IRECLAIMABLE inode can be
+ * freed, then NEED_INACTIVE will be set. Once we start the updates, the
+ * INACTIVATING bit will be set to keep iget away from this inode. After the
+ * inactivation completes, both flags will be cleared and the inode is a
+ * plain old IRECLAIMABLE inode.
+ */
+#define XFS_INACTIVATING (1 << 13)
+
+/* All inode state flags related to inode reclaim. */
+#define XFS_ALL_IRECLAIM_FLAGS (XFS_IRECLAIMABLE | \
+ XFS_IRECLAIM | \
+ XFS_NEED_INACTIVE | \
+ XFS_INACTIVATING)
+
+/*
* Per-lifetime flags need to be reset when re-using a reclaimable inode during
* inode lookup. This prevents unintended behaviour on the new inode from
* ocurring.
*/
#define XFS_IRECLAIM_RESET_FLAGS \
(XFS_IRECLAIMABLE | XFS_IRECLAIM | \
- XFS_IDIRTY_RELEASE | XFS_ITRUNCATED)
+ XFS_IDIRTY_RELEASE | XFS_ITRUNCATED | XFS_NEED_INACTIVE | \
+ XFS_INACTIVATING)
/*
* Flags for inode locking.
@@ -381,8 +399,7 @@ enum layout_break_reason {
* new subdirectory gets S_ISGID bit from parent.
*/
#define XFS_INHERIT_GID(pip) \
- (((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \
- (VFS_I(pip)->i_mode & S_ISGID))
+ (xfs_has_grpid((pip)->i_mount) || (VFS_I(pip)->i_mode & S_ISGID))
int xfs_release(struct xfs_inode *ip);
void xfs_inactive(struct xfs_inode *ip);
@@ -492,6 +509,8 @@ extern struct kmem_zone *xfs_inode_zone;
/* The default CoW extent size hint. */
#define XFS_DEFAULT_COWEXTSZ_HINT 32
+bool xfs_inode_needs_inactive(struct xfs_inode *ip);
+
int xfs_iunlink_init(struct xfs_perag *pag);
void xfs_iunlink_destroy(struct xfs_perag *pag);