eCryptfs: Check return of filemap_write_and_wait during fsync
Error out of ecryptfs_fsync() if filemap_write_and_wait() fails. Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Cc: Paul Taysom <taysom@chromium.org> Cc: Olof Johansson <olofj@chromium.org> Cc: stable@vger.kernel.org # v3.6+
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@ -295,7 +295,12 @@ static int ecryptfs_release(struct inode *inode, struct file *file)
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static int
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ecryptfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
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{
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filemap_write_and_wait(file->f_mapping);
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int rc;
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rc = filemap_write_and_wait(file->f_mapping);
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if (rc)
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return rc;
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return vfs_fsync(ecryptfs_file_to_lower(file), datasync);
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}
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