From: Trond Myklebust trond.myklebust@hammerspace.com
mainline inclusion from mainline-v5.18-rc1 commit 6c984083ec2453dfd3fcf98f392f34500c73e3f2 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IACBGS
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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The use of mapping_set_error() in conjunction with calls to filemap_check_errors() is problematic because every error gets reported as either an EIO or an ENOSPC by filemap_check_errors() in functions such as filemap_write_and_wait() or filemap_write_and_wait_range(). In almost all cases, we prefer to use the more nuanced wb errors.
Fixes: b8946d7bfb94 ("NFS: Revalidate the file mapping on all fatal writeback errors") Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com --- fs/nfs/write.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 11a5e1ef9781..4cf060691979 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -311,7 +311,10 @@ static void nfs_mapping_set_error(struct page *page, int error) struct address_space *mapping = page_file_mapping(page);
SetPageError(page); - mapping_set_error(mapping, error); + filemap_set_wb_err(mapping, error); + if (mapping->host) + errseq_set(&mapping->host->i_sb->s_wb_err, + error == -ENOSPC ? -ENOSPC : -EIO); nfs_set_pageerror(mapping); }