diff options
| author | Gustavo Padovan <gustavo.padovan@collabora.com> | 2017-12-04 16:04:45 -0200 |
|---|---|---|
| committer | Gustavo Padovan <gustavo.padovan@collabora.com> | 2017-12-04 16:04:45 -0200 |
| commit | 7b47c66cfa203288c43851260edeeb0fae56f692 (patch) | |
| tree | fa729735fdaf1d77fbbf13062fd53c31b59d682d /include/linux/backing-dev.h | |
| parent | ca0e68e21aae10220eff71a297e7d794425add77 (diff) | |
| parent | ca797d29cd63e7b71b4eea29aff3b1cefd1ecb59 (diff) | |
Merge arlied/drm-next into drm-misc-next
We need to pull 66660d4cf21b (drm: add connector info/property for
non-desktop displays [v2]) into drm-misc-next to continue the development
of the display rotation series.
Effectively this also pulls 4.15-r2 into drm-misc-next.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Diffstat (limited to 'include/linux/backing-dev.h')
| -rw-r--r-- | include/linux/backing-dev.h | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 854e1bdd0b2a..e54e7e0033eb 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * include/linux/backing-dev.h * @@ -38,8 +39,6 @@ static inline struct backing_dev_info *bdi_alloc(gfp_t gfp_mask) return bdi_alloc_node(gfp_mask, NUMA_NO_NODE); } -void wb_start_writeback(struct bdi_writeback *wb, long nr_pages, - bool range_cyclic, enum wb_reason reason); void wb_start_background_writeback(struct bdi_writeback *wb); void wb_workfn(struct work_struct *work); void wb_wakeup_delayed(struct bdi_writeback *wb); @@ -94,7 +93,7 @@ extern void wb_writeout_inc(struct bdi_writeback *wb); /* * maximal error of a stat counter. */ -static inline unsigned long wb_stat_error(struct bdi_writeback *wb) +static inline unsigned long wb_stat_error(void) { #ifdef CONFIG_SMP return nr_cpu_ids * WB_STAT_BATCH; @@ -123,6 +122,8 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio); * BDI_CAP_STRICTLIMIT: Keep number of dirty pages below bdi threshold. * * BDI_CAP_CGROUP_WRITEBACK: Supports cgroup-aware writeback. + * BDI_CAP_SYNCHRONOUS_IO: Device is so fast that asynchronous IO would be + * inefficient. */ #define BDI_CAP_NO_ACCT_DIRTY 0x00000001 #define BDI_CAP_NO_WRITEBACK 0x00000002 @@ -130,6 +131,7 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio); #define BDI_CAP_STABLE_WRITES 0x00000008 #define BDI_CAP_STRICTLIMIT 0x00000010 #define BDI_CAP_CGROUP_WRITEBACK 0x00000020 +#define BDI_CAP_SYNCHRONOUS_IO 0x00000040 #define BDI_CAP_NO_ACCT_AND_WRITEBACK \ (BDI_CAP_NO_WRITEBACK | BDI_CAP_NO_ACCT_DIRTY | BDI_CAP_NO_ACCT_WB) @@ -174,8 +176,11 @@ static inline int wb_congested(struct bdi_writeback *wb, int cong_bits) long congestion_wait(int sync, long timeout); long wait_iff_congested(struct pglist_data *pgdat, int sync, long timeout); -int pdflush_proc_obsolete(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos); + +static inline bool bdi_cap_synchronous_io(struct backing_dev_info *bdi) +{ + return bdi->capabilities & BDI_CAP_SYNCHRONOUS_IO; +} static inline bool bdi_cap_stable_pages_required(struct backing_dev_info *bdi) { |