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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-22 02:26:01 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-22 02:26:01 +0300
commit505d5c11192960a3f0639d1d9e05dffeddd4e874 (patch)
tree4b9f151bda0f7c146107851bb9053fc1ec4c6461 /fs/nfs/pnfs_nfs.c
parent99313414dda451a8c00b139afc77a803e647f309 (diff)
parent1ebf980127924c639e2b85c08468311ba1c95b70 (diff)
downloadlinux-505d5c11192960a3f0639d1d9e05dffeddd4e874.tar.xz
Merge tag 'nfs-for-4.13-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client bugfixes from Anna Schumaker: "Stable bugfix: - Fix error reporting regression Bugfixes: - Fix setting filelayout ds address race - Fix subtle access bug when using ACLs - Fix setting mnt3_counts array size - Fix a couple of pNFS commit races" * tag 'nfs-for-4.13-2' of git://git.linux-nfs.org/projects/anna/linux-nfs: NFS/filelayout: Fix racy setting of fl->dsaddr in filelayout_check_deviceid() NFS: Be more careful about mapping file permissions NFS: Store the raw NFS access mask in the inode's access cache NFSv3: Convert nfs3_proc_access() to use nfs_access_set_mask() NFS: Refactor NFS access to kernel access mask calculation net/sunrpc/xprt_sock: fix regression in connection error reporting. nfs: count correct array for mnt3_counts array size Revert commit 722f0b891198 ("pNFS: Don't send COMMITs to the DSes if...") pNFS/flexfiles: Handle expired layout segments in ff_layout_initiate_commit() NFS: Fix another COMMIT race in pNFS NFS: Fix a COMMIT race in pNFS mount: copy the port field into the cloned nfs_server structure. NFS: Don't run wake_up_bit() when nobody is waiting... nfs: add export operations
Diffstat (limited to 'fs/nfs/pnfs_nfs.c')
-rw-r--r--fs/nfs/pnfs_nfs.c24
1 files changed, 13 insertions, 11 deletions
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index d40755a0984b..25f28fa64c57 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -159,13 +159,18 @@ void pnfs_generic_recover_commit_reqs(struct list_head *dst,
{
struct pnfs_commit_bucket *b;
struct pnfs_layout_segment *freeme;
+ int nwritten;
int i;
lockdep_assert_held(&cinfo->inode->i_lock);
restart:
for (i = 0, b = cinfo->ds->buckets; i < cinfo->ds->nbuckets; i++, b++) {
- if (pnfs_generic_transfer_commit_list(&b->written, dst,
- cinfo, 0)) {
+ nwritten = pnfs_generic_transfer_commit_list(&b->written,
+ dst, cinfo, 0);
+ if (!nwritten)
+ continue;
+ cinfo->ds->nwritten -= nwritten;
+ if (list_empty(&b->written)) {
freeme = b->wlseg;
b->wlseg = NULL;
spin_unlock(&cinfo->inode->i_lock);
@@ -174,7 +179,6 @@ restart:
goto restart;
}
}
- cinfo->ds->nwritten = 0;
}
EXPORT_SYMBOL_GPL(pnfs_generic_recover_commit_reqs);
@@ -183,6 +187,7 @@ static void pnfs_generic_retry_commit(struct nfs_commit_info *cinfo, int idx)
struct pnfs_ds_commit_info *fl_cinfo = cinfo->ds;
struct pnfs_commit_bucket *bucket;
struct pnfs_layout_segment *freeme;
+ struct list_head *pos;
LIST_HEAD(pages);
int i;
@@ -193,6 +198,8 @@ static void pnfs_generic_retry_commit(struct nfs_commit_info *cinfo, int idx)
continue;
freeme = bucket->clseg;
bucket->clseg = NULL;
+ list_for_each(pos, &bucket->committing)
+ cinfo->ds->ncommitting--;
list_splice_init(&bucket->committing, &pages);
spin_unlock(&cinfo->inode->i_lock);
nfs_retry_commit(&pages, freeme, cinfo, i);
@@ -217,13 +224,6 @@ pnfs_generic_alloc_ds_commits(struct nfs_commit_info *cinfo,
for (i = 0; i < fl_cinfo->nbuckets; i++, bucket++) {
if (list_empty(&bucket->committing))
continue;
- /*
- * If the layout segment is invalid, then let
- * pnfs_generic_retry_commit() clean up the bucket.
- */
- if (bucket->clseg && !pnfs_is_valid_lseg(bucket->clseg) &&
- !test_bit(NFS_LSEG_LAYOUTRETURN, &bucket->clseg->pls_flags))
- break;
data = nfs_commitdata_alloc(false);
if (!data)
break;
@@ -243,9 +243,12 @@ void pnfs_fetch_commit_bucket_list(struct list_head *pages,
struct nfs_commit_info *cinfo)
{
struct pnfs_commit_bucket *bucket;
+ struct list_head *pos;
bucket = &cinfo->ds->buckets[data->ds_commit_index];
spin_lock(&cinfo->inode->i_lock);
+ list_for_each(pos, &bucket->committing)
+ cinfo->ds->ncommitting--;
list_splice_init(&bucket->committing, pages);
data->lseg = bucket->clseg;
bucket->clseg = NULL;
@@ -330,7 +333,6 @@ pnfs_generic_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
}
}
out:
- cinfo->ds->ncommitting = 0;
return PNFS_ATTEMPTED;
}
EXPORT_SYMBOL_GPL(pnfs_generic_commit_pagelist);