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author | Wu Fengguang <fengguang.wu@intel.com> | 2011-05-05 05:54:37 +0400 |
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committer | Wu Fengguang <fengguang.wu@intel.com> | 2011-07-10 09:09:01 +0400 |
commit | d46db3d58233be4be980eb1e42eebe7808bcabab (patch) | |
tree | 6d813b33938d915f0c0633e8615d1ffdcc554c96 /arch/x86/include/asm/timer.h | |
parent | 36715cef0770b7e2547892b7c3197fc024274630 (diff) | |
download | linux-d46db3d58233be4be980eb1e42eebe7808bcabab.tar.xz |
writeback: make writeback_control.nr_to_write straight
Pass struct wb_writeback_work all the way down to writeback_sb_inodes(),
and initialize the struct writeback_control there.
struct writeback_control is basically designed to control writeback of a
single file, but we keep abuse it for writing multiple files in
writeback_sb_inodes() and its callers.
It immediately clean things up, e.g. suddenly wbc.nr_to_write vs
work->nr_pages starts to make sense, and instead of saving and restoring
pages_skipped in writeback_sb_inodes it can always start with a clean
zero value.
It also makes a neat IO pattern change: large dirty files are now
written in the full 4MB writeback chunk size, rather than whatever
remained quota in wbc->nr_to_write.
Acked-by: Jan Kara <jack@suse.cz>
Proposed-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Diffstat (limited to 'arch/x86/include/asm/timer.h')
0 files changed, 0 insertions, 0 deletions