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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-03-03 08:06:35 +0300 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-03-03 21:58:08 +0300 |
| commit | ef070dcb3989f553f5d84edf555eebc7e204099d (patch) | |
| tree | 57a10c226e43b7eb28b03786591164686d88fbf5 | |
| parent | 874f946376de57c8d6230b30ad71f742883fee3a (diff) | |
| download | linux-ef070dcb3989f553f5d84edf555eebc7e204099d.tar.xz | |
NFS: Don't write enable new pages while an invalidation is proceeding
nfs_vm_page_mkwrite() should wait until the page cache invalidation
is finished. This is the second patch in a 2 patch series to deprecate
the NFS client's reliance on nfs_release_page() in the context of
nfs_invalidate_mapping().
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| -rw-r--r-- | fs/nfs/file.c | 3 | ||||
| -rw-r--r-- | fs/nfs/inode.c | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 41963ffca597..e679d24c39d3 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -623,6 +623,9 @@ static int nfs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) /* make sure the cache has finished storing the page */ nfs_fscache_wait_on_page_write(NFS_I(inode), page); + wait_on_bit_action(&NFS_I(inode)->flags, NFS_INO_INVALIDATING, + nfs_wait_bit_killable, TASK_KILLABLE); + lock_page(page); mapping = page_file_mapping(page); if (mapping != inode->i_mapping) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 8edb7d049565..d42dff6d5e98 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -1035,6 +1035,7 @@ static int nfs_invalidate_mapping(struct inode *inode, struct address_space *map if (mapping->nrpages != 0) { if (S_ISREG(inode->i_mode)) { + unmap_mapping_range(mapping, 0, 0, 0); ret = nfs_sync_mapping(mapping); if (ret < 0) return ret; |