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author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-07-18 17:17:30 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-07-18 17:17:30 -0700 |
commit | 4f40c636b291deeae7d1f4c9fb5db5f0aac54267 (patch) | |
tree | 3f6ad7456586ae41db514dfc649b3d79fae51597 /fs/nfs/delegation.c | |
parent | 51ed42a8a135511f6d6f75b56e85e6586a06a93c (diff) | |
parent | b9fae9f06d84ffab0f3f9118f3a96bbcdc528bf6 (diff) |
Merge tag 'nfs-for-6.11-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client updates from Anna Schumaker:
"New Features:
- Add support for large folios
- Implement rpcrdma generic device removal notification
- Add client support for attribute delegations
- Use a LAYOUTRETURN during reboot recovery to report layoutstats
and errors
- Improve throughput for random buffered writes
- Add NVMe support to pnfs/blocklayout
Bugfixes:
- Fix rpcrdma_reqs_reset()
- Avoid soft lockups when using UDP
- Fix an nfs/blocklayout premature PR key unregestration
- Another fix for EXCHGID4_FLAG_USE_PNFS_DS for DS server
- Do not extend writes to the entire folio
- Pass explicit offset and count values to tracepoints
- Fix a race to wake up sleeping SUNRPC sync tasks
- Fix gss_status tracepoint output
Cleanups:
- Add missing MODULE_DESCRIPTION() macros
- Add blocklayout / SCSI layout tracepoints
- Remove asm-generic headers from xprtrdma verbs.c
- Remove unused 'struct mnt_fhstatus'
- Other delegation related cleanups
- Other folio related cleanups
- Other pNFS related cleanups
- Other xprtrdma cleanups"
* tag 'nfs-for-6.11-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (63 commits)
SUNRPC: Fixup gss_status tracepoint error output
SUNRPC: Fix a race to wake a sync task
nfs: split nfs_read_folio
nfs: pass explicit offset/count to trace events
nfs: do not extend writes to the entire folio
nfs/blocklayout: add support for NVMe
nfs: remove nfs_page_length
nfs: remove the unused max_deviceinfo_size field from struct pnfs_layoutdriver_type
nfs: don't reuse partially completed requests in nfs_lock_and_join_requests
nfs: move nfs_wait_on_request to write.c
nfs: fold nfs_page_group_lock_subrequests into nfs_lock_and_join_requests
nfs: fold nfs_folio_find_and_lock_request into nfs_lock_and_join_requests
nfs: simplify nfs_folio_find_and_lock_request
nfs: remove nfs_folio_private_request
nfs: remove dead code for the old swap over NFS implementation
NFSv4.1 another fix for EXCHGID4_FLAG_USE_PNFS_DS for DS server
nfs: Block on write congestion
nfs: Properly initialize server->writeback
nfs: Drop pointless check from nfs_commit_release_pages()
nfs/blocklayout: SCSI layout trace points for reservation key reg/unreg
...
Diffstat (limited to 'fs/nfs/delegation.c')
-rw-r--r-- | fs/nfs/delegation.c | 67 |
1 files changed, 45 insertions, 22 deletions
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index 6bace5fece04..d5edb3b3eeef 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -82,11 +82,10 @@ static void nfs_mark_return_delegation(struct nfs_server *server, set_bit(NFS4CLNT_DELEGRETURN, &server->nfs_client->cl_state); } -static bool -nfs4_is_valid_delegation(const struct nfs_delegation *delegation, - fmode_t flags) +static bool nfs4_is_valid_delegation(const struct nfs_delegation *delegation, + fmode_t type) { - if (delegation != NULL && (delegation->type & flags) == flags && + if (delegation != NULL && (delegation->type & type) == type && !test_bit(NFS_DELEGATION_REVOKED, &delegation->flags) && !test_bit(NFS_DELEGATION_RETURNING, &delegation->flags)) return true; @@ -103,19 +102,22 @@ struct nfs_delegation *nfs4_get_valid_delegation(const struct inode *inode) return NULL; } -static int -nfs4_do_check_delegation(struct inode *inode, fmode_t flags, bool mark) +static int nfs4_do_check_delegation(struct inode *inode, fmode_t type, + int flags, bool mark) { struct nfs_delegation *delegation; int ret = 0; - flags &= FMODE_READ|FMODE_WRITE; + type &= FMODE_READ|FMODE_WRITE; rcu_read_lock(); delegation = rcu_dereference(NFS_I(inode)->delegation); - if (nfs4_is_valid_delegation(delegation, flags)) { + if (nfs4_is_valid_delegation(delegation, type)) { if (mark) nfs_mark_delegation_referenced(delegation); ret = 1; + if ((flags & NFS_DELEGATION_FLAG_TIME) && + !test_bit(NFS_DELEGATION_DELEGTIME, &delegation->flags)) + ret = 0; } rcu_read_unlock(); return ret; @@ -124,22 +126,23 @@ nfs4_do_check_delegation(struct inode *inode, fmode_t flags, bool mark) * nfs4_have_delegation - check if inode has a delegation, mark it * NFS_DELEGATION_REFERENCED if there is one. * @inode: inode to check - * @flags: delegation types to check for + * @type: delegation types to check for + * @flags: various modifiers * * Returns one if inode has the indicated delegation, otherwise zero. */ -int nfs4_have_delegation(struct inode *inode, fmode_t flags) +int nfs4_have_delegation(struct inode *inode, fmode_t type, int flags) { - return nfs4_do_check_delegation(inode, flags, true); + return nfs4_do_check_delegation(inode, type, flags, true); } /* * nfs4_check_delegation - check if inode has a delegation, do not mark * NFS_DELEGATION_REFERENCED if it has one. */ -int nfs4_check_delegation(struct inode *inode, fmode_t flags) +int nfs4_check_delegation(struct inode *inode, fmode_t type) { - return nfs4_do_check_delegation(inode, flags, false); + return nfs4_do_check_delegation(inode, type, 0, false); } static int nfs_delegation_claim_locks(struct nfs4_state *state, const nfs4_stateid *stateid) @@ -221,11 +224,12 @@ again: * @type: delegation type * @stateid: delegation stateid * @pagemod_limit: write delegation "space_limit" + * @deleg_type: raw delegation type * */ void nfs_inode_reclaim_delegation(struct inode *inode, const struct cred *cred, fmode_t type, const nfs4_stateid *stateid, - unsigned long pagemod_limit) + unsigned long pagemod_limit, u32 deleg_type) { struct nfs_delegation *delegation; const struct cred *oldcred = NULL; @@ -239,6 +243,14 @@ void nfs_inode_reclaim_delegation(struct inode *inode, const struct cred *cred, delegation->pagemod_limit = pagemod_limit; oldcred = delegation->cred; delegation->cred = get_cred(cred); + switch (deleg_type) { + case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG: + case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG: + set_bit(NFS_DELEGATION_DELEGTIME, &delegation->flags); + break; + default: + clear_bit(NFS_DELEGATION_DELEGTIME, &delegation->flags); + } clear_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags); if (test_and_clear_bit(NFS_DELEGATION_REVOKED, &delegation->flags)) @@ -250,11 +262,13 @@ void nfs_inode_reclaim_delegation(struct inode *inode, const struct cred *cred, } else { rcu_read_unlock(); nfs_inode_set_delegation(inode, cred, type, stateid, - pagemod_limit); + pagemod_limit, deleg_type); } } -static int nfs_do_return_delegation(struct inode *inode, struct nfs_delegation *delegation, int issync) +static int nfs_do_return_delegation(struct inode *inode, + struct nfs_delegation *delegation, + int issync) { const struct cred *cred; int res = 0; @@ -263,9 +277,8 @@ static int nfs_do_return_delegation(struct inode *inode, struct nfs_delegation * spin_lock(&delegation->lock); cred = get_cred(delegation->cred); spin_unlock(&delegation->lock); - res = nfs4_proc_delegreturn(inode, cred, - &delegation->stateid, - issync); + res = nfs4_proc_delegreturn(inode, cred, &delegation->stateid, + delegation, issync); put_cred(cred); } return res; @@ -418,13 +431,13 @@ nfs_update_inplace_delegation(struct nfs_delegation *delegation, * @type: delegation type * @stateid: delegation stateid * @pagemod_limit: write delegation "space_limit" + * @deleg_type: raw delegation type * * Returns zero on success, or a negative errno value. */ int nfs_inode_set_delegation(struct inode *inode, const struct cred *cred, - fmode_t type, - const nfs4_stateid *stateid, - unsigned long pagemod_limit) + fmode_t type, const nfs4_stateid *stateid, + unsigned long pagemod_limit, u32 deleg_type) { struct nfs_server *server = NFS_SERVER(inode); struct nfs_client *clp = server->nfs_client; @@ -444,6 +457,11 @@ int nfs_inode_set_delegation(struct inode *inode, const struct cred *cred, delegation->cred = get_cred(cred); delegation->inode = inode; delegation->flags = 1<<NFS_DELEGATION_REFERENCED; + switch (deleg_type) { + case NFS4_OPEN_DELEGATE_READ_ATTRS_DELEG: + case NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG: + delegation->flags |= BIT(NFS_DELEGATION_DELEGTIME); + } delegation->test_gen = 0; spin_lock_init(&delegation->lock); @@ -508,6 +526,11 @@ add_new: atomic_long_inc(&nfs_active_delegations); trace_nfs4_set_delegation(inode, type); + + /* If we hold writebacks and have delegated mtime then update */ + if (deleg_type == NFS4_OPEN_DELEGATE_WRITE_ATTRS_DELEG && + nfs_have_writebacks(inode)) + nfs_update_delegated_mtime(inode); out: spin_unlock(&clp->cl_lock); if (delegation != NULL) |