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authorLinus Torvalds <torvalds@linux-foundation.org>2022-12-12 20:54:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-12-12 20:54:39 -0800
commit764822972d64e7f3e6792278ecc7a3b3c81087cd (patch)
tree260c43c68a5fafaae5fcee299d18171e72b23ee8 /fs/lockd
parent149c51f876322d9bfbd5e2d6ffae7aff3d794384 (diff)
parente78e274eb22d966258a3845acc71d3c5b8ee2ea8 (diff)
Merge tag 'nfsd-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd updates from Chuck Lever: "This release introduces support for the CB_RECALL_ANY operation. NFSD can send this operation to request that clients return any delegations they choose. The server uses this operation to handle low memory scenarios or indicate to a client when that client has reached the maximum number of delegations the server supports. The NFSv4.2 READ_PLUS operation has been simplified temporarily whilst support for sparse files in local filesystems and the VFS is improved. Two major data structure fixes appear in this release: - The nfs4_file hash table is replaced with a resizable hash table to reduce the latency of NFSv4 OPEN operations. - Reference counting in the NFSD filecache has been hardened against races. In furtherance of removing support for NFSv2 in a subsequent kernel release, a new Kconfig option enables server-side support for NFSv2 to be left out of a kernel build. MAINTAINERS has been updated to indicate that changes to fs/exportfs should go through the NFSD tree" * tag 'nfsd-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (49 commits) NFSD: Avoid clashing function prototypes SUNRPC: Fix crasher in unwrap_integ_data() SUNRPC: Make the svc_authenticate tracepoint conditional NFSD: Use only RQ_DROPME to signal the need to drop a reply SUNRPC: Clean up xdr_write_pages() SUNRPC: Don't leak netobj memory when gss_read_proxy_verf() fails NFSD: add CB_RECALL_ANY tracepoints NFSD: add delegation reaper to react to low memory condition NFSD: add support for sending CB_RECALL_ANY NFSD: refactoring courtesy_client_reaper to a generic low memory shrinker trace: Relocate event helper files NFSD: pass range end to vfs_fsync_range() instead of count lockd: fix file selection in nlmsvc_cancel_blocked lockd: ensure we use the correct file descriptor when unlocking lockd: set missing fl_flags field when retrieving args NFSD: Use struct_size() helper in alloc_session() nfsd: return error if nfs4_setacl fails lockd: set other missing fields when unlocking files NFSD: Add an nfsd_file_fsync tracepoint sunrpc: svc: Remove an unused static function svc_ungetu32() ...
Diffstat (limited to 'fs/lockd')
-rw-r--r--fs/lockd/svc4proc.c1
-rw-r--r--fs/lockd/svclock.c17
-rw-r--r--fs/lockd/svcproc.c1
-rw-r--r--fs/lockd/svcsubs.c17
4 files changed, 22 insertions, 14 deletions
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index 284b019cb652..b72023a6b4c1 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -52,6 +52,7 @@ nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
*filp = file;
/* Set up the missing parts of the file_lock structure */
+ lock->fl.fl_flags = FL_POSIX;
lock->fl.fl_file = file->f_file[mode];
lock->fl.fl_pid = current->tgid;
lock->fl.fl_start = (loff_t)lock->lock_start;
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 9c1aa75441e1..4e30f3c50970 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -659,11 +659,13 @@ nlmsvc_unlock(struct net *net, struct nlm_file *file, struct nlm_lock *lock)
nlmsvc_cancel_blocked(net, file, lock);
lock->fl.fl_type = F_UNLCK;
- if (file->f_file[O_RDONLY])
- error = vfs_lock_file(file->f_file[O_RDONLY], F_SETLK,
+ lock->fl.fl_file = file->f_file[O_RDONLY];
+ if (lock->fl.fl_file)
+ error = vfs_lock_file(lock->fl.fl_file, F_SETLK,
&lock->fl, NULL);
- if (file->f_file[O_WRONLY])
- error = vfs_lock_file(file->f_file[O_WRONLY], F_SETLK,
+ lock->fl.fl_file = file->f_file[O_WRONLY];
+ if (lock->fl.fl_file)
+ error |= vfs_lock_file(lock->fl.fl_file, F_SETLK,
&lock->fl, NULL);
return (error < 0)? nlm_lck_denied_nolocks : nlm_granted;
@@ -697,9 +699,10 @@ nlmsvc_cancel_blocked(struct net *net, struct nlm_file *file, struct nlm_lock *l
block = nlmsvc_lookup_block(file, lock);
mutex_unlock(&file->f_mutex);
if (block != NULL) {
- mode = lock_to_openmode(&lock->fl);
- vfs_cancel_lock(block->b_file->f_file[mode],
- &block->b_call->a_args.lock.fl);
+ struct file_lock *fl = &block->b_call->a_args.lock.fl;
+
+ mode = lock_to_openmode(fl);
+ vfs_cancel_lock(block->b_file->f_file[mode], fl);
status = nlmsvc_unlink_block(block);
nlmsvc_release_block(block);
}
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index e35c05e27806..32784f508c81 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -77,6 +77,7 @@ nlmsvc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Set up the missing parts of the file_lock structure */
mode = lock_to_openmode(&lock->fl);
+ lock->fl.fl_flags = FL_POSIX;
lock->fl.fl_file = file->f_file[mode];
lock->fl.fl_pid = current->tgid;
lock->fl.fl_lmops = &nlmsvc_lock_operations;
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index 720684345817..e3b6229e7ae5 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -176,7 +176,7 @@ nlm_delete_file(struct nlm_file *file)
}
}
-static int nlm_unlock_files(struct nlm_file *file, fl_owner_t owner)
+static int nlm_unlock_files(struct nlm_file *file, const struct file_lock *fl)
{
struct file_lock lock;
@@ -184,12 +184,15 @@ static int nlm_unlock_files(struct nlm_file *file, fl_owner_t owner)
lock.fl_type = F_UNLCK;
lock.fl_start = 0;
lock.fl_end = OFFSET_MAX;
- lock.fl_owner = owner;
- if (file->f_file[O_RDONLY] &&
- vfs_lock_file(file->f_file[O_RDONLY], F_SETLK, &lock, NULL))
+ lock.fl_owner = fl->fl_owner;
+ lock.fl_pid = fl->fl_pid;
+ lock.fl_flags = FL_POSIX;
+
+ lock.fl_file = file->f_file[O_RDONLY];
+ if (lock.fl_file && vfs_lock_file(lock.fl_file, F_SETLK, &lock, NULL))
goto out_err;
- if (file->f_file[O_WRONLY] &&
- vfs_lock_file(file->f_file[O_WRONLY], F_SETLK, &lock, NULL))
+ lock.fl_file = file->f_file[O_WRONLY];
+ if (lock.fl_file && vfs_lock_file(lock.fl_file, F_SETLK, &lock, NULL))
goto out_err;
return 0;
out_err:
@@ -226,7 +229,7 @@ again:
if (match(lockhost, host)) {
spin_unlock(&flctx->flc_lock);
- if (nlm_unlock_files(file, fl->fl_owner))
+ if (nlm_unlock_files(file, fl))
return 1;
goto again;
}