diff options
Diffstat (limited to 'fs/ocfs2/dlmglue.c')
| -rw-r--r-- | fs/ocfs2/dlmglue.c | 68 |
1 files changed, 55 insertions, 13 deletions
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index cb9e6a73bea9..c28bc983a7b1 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-or-later -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +/* * dlmglue.c * * Code which implements an OCFS2 specific interface to our DLM. @@ -18,6 +16,7 @@ #include <linux/debugfs.h> #include <linux/seq_file.h> #include <linux/time.h> +#include <linux/delay.h> #include <linux/quotaops.h> #include <linux/sched/signal.h> @@ -689,6 +688,12 @@ static void ocfs2_nfs_sync_lock_res_init(struct ocfs2_lock_res *res, &ocfs2_nfs_sync_lops, osb); } +static void ocfs2_nfs_sync_lock_init(struct ocfs2_super *osb) +{ + ocfs2_nfs_sync_lock_res_init(&osb->osb_nfs_sync_lockres, osb); + init_rwsem(&osb->nfs_sync_rwlock); +} + void ocfs2_trim_fs_lock_res_init(struct ocfs2_super *osb) { struct ocfs2_lock_res *lockres = &osb->osb_trim_fs_lockres; @@ -2133,7 +2138,7 @@ static void ocfs2_downconvert_on_unlock(struct ocfs2_super *osb, } #define OCFS2_SEC_BITS 34 -#define OCFS2_SEC_SHIFT (64 - 34) +#define OCFS2_SEC_SHIFT (64 - OCFS2_SEC_BITS) #define OCFS2_NSEC_MASK ((1ULL << OCFS2_SEC_SHIFT) - 1) /* LVB only has room for 64 bits of time here so we pack it for @@ -2198,7 +2203,7 @@ static void ocfs2_unpack_timespec(struct timespec64 *spec, spec->tv_nsec = packed_time & OCFS2_NSEC_MASK; } -static void ocfs2_refresh_inode_from_lvb(struct inode *inode) +static int ocfs2_refresh_inode_from_lvb(struct inode *inode) { struct ocfs2_inode_info *oi = OCFS2_I(inode); struct ocfs2_lock_res *lockres = &oi->ip_inode_lockres; @@ -2207,6 +2212,8 @@ static void ocfs2_refresh_inode_from_lvb(struct inode *inode) mlog_meta_lvb(0, lockres); lvb = ocfs2_dlm_lvb(&lockres->l_lksb); + if (inode_wrong_type(inode, be16_to_cpu(lvb->lvb_imode))) + return -ESTALE; /* We're safe here without the lockres lock... */ spin_lock(&oi->ip_lock); @@ -2234,6 +2241,7 @@ static void ocfs2_refresh_inode_from_lvb(struct inode *inode) ocfs2_unpack_timespec(&inode->i_ctime, be64_to_cpu(lvb->lvb_ictime_packed)); spin_unlock(&oi->ip_lock); + return 0; } static inline int ocfs2_meta_lvb_is_trustable(struct inode *inode, @@ -2336,7 +2344,8 @@ static int ocfs2_inode_lock_update(struct inode *inode, if (ocfs2_meta_lvb_is_trustable(inode, lockres)) { mlog(0, "Trusting LVB on inode %llu\n", (unsigned long long)oi->ip_blkno); - ocfs2_refresh_inode_from_lvb(inode); + status = ocfs2_refresh_inode_from_lvb(inode); + goto bail_refresh; } else { /* Boo, we have to go to disk. */ /* read bh, cast, ocfs2_refresh_inode */ @@ -2346,6 +2355,10 @@ static int ocfs2_inode_lock_update(struct inode *inode, goto bail_refresh; } fe = (struct ocfs2_dinode *) (*bh)->b_data; + if (inode_wrong_type(inode, le16_to_cpu(fe->i_mode))) { + status = -ESTALE; + goto bail_refresh; + } /* This is a good chance to make sure we're not * locking an invalid object. ocfs2_read_inode_block() @@ -2709,7 +2722,7 @@ int ocfs2_inode_lock_tracker(struct inode *inode, return status; } } - return tmp_oh ? 1 : 0; + return 1; } void ocfs2_inode_unlock_tracker(struct inode *inode, @@ -2855,14 +2868,25 @@ int ocfs2_nfs_sync_lock(struct ocfs2_super *osb, int ex) if (ocfs2_is_hard_readonly(osb)) return -EROFS; + if (ex) + down_write(&osb->nfs_sync_rwlock); + else + down_read(&osb->nfs_sync_rwlock); + if (ocfs2_mount_local(osb)) return 0; status = ocfs2_cluster_lock(osb, lockres, ex ? LKM_EXMODE : LKM_PRMODE, 0, 0); - if (status < 0) + if (status < 0) { mlog(ML_ERROR, "lock on nfs sync lock failed %d\n", status); + if (ex) + up_write(&osb->nfs_sync_rwlock); + else + up_read(&osb->nfs_sync_rwlock); + } + return status; } @@ -2873,6 +2897,10 @@ void ocfs2_nfs_sync_unlock(struct ocfs2_super *osb, int ex) if (!ocfs2_mount_local(osb)) ocfs2_cluster_unlock(osb, lockres, ex ? LKM_EXMODE : LKM_PRMODE); + if (ex) + up_write(&osb->nfs_sync_rwlock); + else + up_read(&osb->nfs_sync_rwlock); } int ocfs2_trim_fs_lock(struct ocfs2_super *osb, @@ -3340,7 +3368,7 @@ int ocfs2_dlm_init(struct ocfs2_super *osb) local: ocfs2_super_lock_res_init(&osb->osb_super_lockres, osb); ocfs2_rename_lock_res_init(&osb->osb_rename_lockres, osb); - ocfs2_nfs_sync_lock_res_init(&osb->osb_nfs_sync_lockres, osb); + ocfs2_nfs_sync_lock_init(osb); ocfs2_orphan_scan_lock_res_init(&osb->osb_orphan_scan.os_lockres, osb); osb->cconn = conn; @@ -3375,10 +3403,12 @@ void ocfs2_dlm_shutdown(struct ocfs2_super *osb, ocfs2_lock_res_free(&osb->osb_nfs_sync_lockres); ocfs2_lock_res_free(&osb->osb_orphan_scan.os_lockres); - ocfs2_cluster_disconnect(osb->cconn, hangup_pending); - osb->cconn = NULL; + if (osb->cconn) { + ocfs2_cluster_disconnect(osb->cconn, hangup_pending); + osb->cconn = NULL; - ocfs2_dlm_shutdown_debug(osb); + ocfs2_dlm_shutdown_debug(osb); + } } static int ocfs2_drop_lock(struct ocfs2_super *osb, @@ -3885,6 +3915,17 @@ downconvert: spin_unlock_irqrestore(&lockres->l_lock, flags); ret = ocfs2_downconvert_lock(osb, lockres, new_level, set_lvb, gen); + /* The dlm lock convert is being cancelled in background, + * ocfs2_cancel_convert() is asynchronous in fs/dlm, + * requeue it, try again later. + */ + if (ret == -EBUSY) { + ctl->requeue = 1; + mlog(ML_BASTS, "lockres %s, ReQ: Downconvert busy\n", + lockres->l_name); + ret = 0; + msleep(20); + } leave: if (ret) @@ -3912,7 +3953,7 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres, oi = OCFS2_I(inode); oi->ip_dir_lock_gen++; mlog(0, "generation: %u\n", oi->ip_dir_lock_gen); - goto out; + goto out_forget; } if (!S_ISREG(inode->i_mode)) @@ -3943,6 +3984,7 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres, filemap_fdatawait(mapping); } +out_forget: forget_all_cached_acls(inode); out: |