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-rw-r--r--fs/nfs/file.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index a606708..4043685 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -333,9 +333,15 @@ nfs_file_write(struct kiocb *iocb, const char __user *buf, size_t count, loff_t
result = -EBUSY;
if (IS_SWAPFILE(inode))
goto out_swapfile;
- result = nfs_revalidate_inode(NFS_SERVER(inode), inode);
- if (result)
- goto out;
+ /*
+ * O_APPEND implies that we must revalidate the file length.
+ */
+ if (iocb->ki_filp->f_flags & O_APPEND) {
+ result = nfs_revalidate_file_size(inode, iocb->ki_filp);
+ if (result)
+ goto out;
+ } else
+ nfs_revalidate_mapping(inode, iocb->ki_filp->f_mapping);
result = count;
if (!count)
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