Christoph Hellwig b571cfcb9d nfs: don't reuse partially completed requests in nfs_lock_and_join_requests ... When NFS requests are split into sub-requests, nfs_inode_remove_request calls nfs_page_group_sync_on_bit to set PG_REMOVE on this sub-request and only completes the head requests once PG_REMOVE is set on all requests. This means that when nfs_lock_and_join_requests sees a PG_REMOVE bit, I/O on the request is in progress and has partially completed. If such a request is returned to nfs_try_to_update_request, it could be extended with the newly dirtied region and I/O for the combined range will be re-scheduled, leading to extra I/O. Change the logic to instead restart the search for a request when any PG_REMOVE bit is set, as the completion handler will remove the request as soon as it can take the page group lock. This not only avoid extending the I/O but also does the right thing for the callers that want to cancel or flush the request. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>		2024-07-08 13:47:51 -04:00
..
blocklayout	nfs/blocklayout: SCSI layout trace points for reservation key reg/unreg	2024-07-08 13:47:27 -04:00
filelayout	nfs: remove dead code for the old swap over NFS implementation	2024-07-08 13:47:51 -04:00
flexfilelayout	NFSv4/pNFS: Do layout state recovery upon reboot	2024-07-08 13:47:26 -04:00
cache_lib.c
cache_lib.h
callback_proc.c	pNFS: Add a flag argument to pnfs_destroy_layouts_byclid()	2024-07-08 13:47:26 -04:00
callback_xdr.c	NFSv4: Add CB_GETATTR support for delegated attributes	2024-07-08 13:47:25 -04:00
callback.c	nfsd: stop setting ->pg_stats for unused stats	2024-03-01 09:12:08 -05:00
callback.h	NFSv4: Add CB_GETATTR support for delegated attributes	2024-07-08 13:47:25 -04:00
client.c	nfs: Block on write congestion	2024-07-08 13:47:27 -04:00
delegation.c	NFSv4: Delegreturn must set m/atime when they are delegated	2024-07-08 13:47:25 -04:00
delegation.h	NFSv4: Delegreturn must set m/atime when they are delegated	2024-07-08 13:47:25 -04:00
dir.c	NFSv4: Add a flags argument to the 'have_delegation' callback	2024-07-08 13:47:25 -04:00
direct.c	nfs: drop the incorrect assertion in nfs_swap_rw()	2024-06-24 20:52:11 -07:00
dns_resolve.c	NFS: Move common includes outside ifdef	2023-08-24 13:24:15 -04:00
dns_resolve.h	NFS: Avoid memcpy() run-time warning for struct sockaddr overflows	2022-10-27 15:52:10 -04:00
export.c	nfsd: allow reaping files still under writeback	2023-04-26 09:04:59 -04:00
file.c	nfs: remove dead code for the old swap over NFS implementation	2024-07-08 13:47:51 -04:00
fs_context.c	nfs: keep server info for remounts	2024-05-20 11:37:15 -04:00
fscache.c	nfs: remove dead code for the old swap over NFS implementation	2024-07-08 13:47:51 -04:00
fscache.h	mm: Remove the PG_fscache alias for PG_private_2	2024-04-29 15:01:42 +01:00
getroot.c	NFS: Remove the nfs4_label argument from nfs_setsecurity	2021-11-05 14:54:40 -04:00
inode.c	NFSv4: Fix up delegated attributes in nfs_setattr	2024-07-08 13:47:25 -04:00
internal.h	nfs: remove dead code for the old swap over NFS implementation	2024-07-08 13:47:51 -04:00
io.c
iostat.h	mm: change inlined allocation helpers to account at the call site	2024-04-25 20:55:59 -07:00
Kconfig	NFS: Don't enable NFS v2 by default	2024-05-20 11:37:15 -04:00
Makefile	nfs: Convert to new fscache volume/cookie API	2022-01-10 11:53:25 +00:00
mount_clnt.c	NFS: remove unused struct 'mnt_fhstatus'	2024-07-08 13:47:24 -04:00
namespace.c	fs: pass the request_mask to generic_fillattr	2023-08-09 08:56:36 +02:00
netns.h	nfs: make the rpc_stat per net namespace	2024-03-09 09:14:51 -05:00
nfs2super.c	fs: nfs: add missing MODULE_DESCRIPTION() macros	2024-07-08 13:47:24 -04:00
nfs2xdr.c	NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN	2023-08-30 11:08:27 -04:00
nfs3_fs.h	fs: drop unused posix acl handlers	2023-03-06 09:57:12 +01:00
nfs3acl.c	Mainly singleton patches all over the place. Series of note are:	2023-04-27 19:57:00 -07:00
nfs3client.c	NFS: enable nconnect for RDMA	2024-03-09 09:14:51 -05:00
nfs3proc.c	Return the delegation when deleting sillyrenamed files	2024-07-08 13:47:26 -04:00
nfs3super.c	fs: nfs: add missing MODULE_DESCRIPTION() macros	2024-07-08 13:47:24 -04:00
nfs3xdr.c	NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN	2023-08-30 11:08:27 -04:00
nfs4_fs.h	NFSv4.1: constify the stateid argument in nfs41_test_stateid()	2024-07-08 13:47:26 -04:00
nfs4client.c	NFSv4.1 another fix for EXCHGID4_FLAG_USE_PNFS_DS for DS server	2024-07-08 13:47:27 -04:00
nfs4file.c	filelock: split leases out of struct file_lock	2024-02-05 13:11:44 +01:00
nfs4getroot.c
nfs4idmap.c	cred: Do not default to init_cred in prepare_kernel_cred()	2022-11-01 10:04:52 -07:00
nfs4idmap.h
nfs4namespace.c	NFS: Avoid memcpy() run-time warning for struct sockaddr overflows	2022-10-27 15:52:10 -04:00
nfs4proc.c	NFSv4.1 another fix for EXCHGID4_FLAG_USE_PNFS_DS for DS server	2024-07-08 13:47:27 -04:00
nfs4renewd.c
nfs4session.c	NFSv4: Sanity check the parameters in nfs41_update_target_slotid()	2021-11-07 09:23:14 -05:00
nfs4session.h	NFSv4: Sanity check the parameters in nfs41_update_target_slotid()	2021-11-07 09:23:14 -05:00
nfs4state.c	NFSv4/pNFS: Do layout state recovery upon reboot	2024-07-08 13:47:26 -04:00
nfs4super.c	fs: nfs: add missing MODULE_DESCRIPTION() macros	2024-07-08 13:47:24 -04:00
nfs4sysctl.c	fs: Remove the now superfluous sentinel elements from ctl_table array	2023-12-28 04:57:57 -08:00
nfs4trace.c	nfs/blocklayout: SCSI layout trace points for reservation key reg/unreg	2024-07-08 13:47:27 -04:00
nfs4trace.h	nfs/blocklayout: SCSI layout trace points for reservation key reg/unreg	2024-07-08 13:47:27 -04:00
nfs4xdr.c	NFSv4: Clean up encode_nfs4_stateid()	2024-07-08 13:47:26 -04:00
nfs42.h	NFSv4.2: fix listxattr maximum XDR buffer size	2024-02-28 16:18:18 -05:00
nfs42proc.c	nfs42: client needs to strip file mode's suid/sgid bit after ALLOCATE op	2023-10-11 09:37:48 -04:00
nfs42xattr.c	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
nfs42xdr.c	NFSv4.2: Rework scratch handling for READ_PLUS (again)	2023-08-23 15:58:47 -04:00
nfs.h	nfs: move nfs4_xattr_handlers to .rodata	2023-10-09 16:24:20 +02:00
nfsroot.c	NFS: Fix an off by one in root_nfs_cat()	2024-03-09 09:14:51 -05:00
nfstrace.c
nfstrace.h	tracing/treewide: Remove second parameter of __assign_str()	2024-05-22 20:14:47 -04:00
pagelist.c	nfs: move nfs_wait_on_request to write.c	2024-07-08 13:47:51 -04:00
pnfs_dev.c	NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info	2023-08-24 13:24:15 -04:00
pnfs_nfs.c	nfs: remove dead code for the old swap over NFS implementation	2024-07-08 13:47:51 -04:00
pnfs.c	NFSv4/pNFS: Do layout state recovery upon reboot	2024-07-08 13:47:26 -04:00
pnfs.h	nfs: remove dead code for the old swap over NFS implementation	2024-07-08 13:47:51 -04:00
proc.c	Return the delegation when deleting sillyrenamed files	2024-07-08 13:47:26 -04:00
read.c	nfs: remove dead code for the old swap over NFS implementation	2024-07-08 13:47:51 -04:00
super.c	NFS: make sure lock/nolock overriding local_lock mount option	2024-05-20 11:10:27 -04:00
symlink.c	nfs: propagate readlink errors in nfs_symlink_filler	2024-05-22 19:25:00 -04:00
sysctl.c	fs: Remove the now superfluous sentinel elements from ctl_table array	2023-12-28 04:57:57 -08:00
sysfs.c	NFS: Fix sysfs server name memory leak	2023-08-19 10:26:29 -04:00
sysfs.h	NFS: Add sysfs links to sunrpc clients for nfs_clients	2023-06-19 15:04:13 -04:00
unlink.c	Return the delegation when deleting sillyrenamed files	2024-07-08 13:47:26 -04:00
write.c	nfs: don't reuse partially completed requests in nfs_lock_and_join_requests	2024-07-08 13:47:51 -04:00