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| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2013-02-14 15:35:28 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2013-02-14 15:35:28 +1100 |
| commit | f600c997a1e930c3be312fdc4d1a67979d89173e (patch) | |
| tree | 352f5d35d672887a5552730cb71af9d3f068fe19 /include/linux/backing-dev.h | |
| parent | 065957b017e290977dc5527ae4e21cff9d3fb5ec (diff) | |
| parent | 0ef183f7f162a62662f6002b03bcf3ca2903c937 (diff) | |
Merge branch 'akpm/master'
Diffstat (limited to 'include/linux/backing-dev.h')
| -rw-r--r-- | include/linux/backing-dev.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 12731a19ef06..350459910fe1 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -254,6 +254,7 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio); #define BDI_CAP_EXEC_MAP 0x00000040 #define BDI_CAP_NO_ACCT_WB 0x00000080 #define BDI_CAP_SWAP_BACKED 0x00000100 +#define BDI_CAP_STABLE_WRITES 0x00000200 #define BDI_CAP_VMFLAGS \ (BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP) @@ -308,6 +309,11 @@ long wait_iff_congested(struct zone *zone, 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_stable_pages_required(struct backing_dev_info *bdi) +{ + return bdi->capabilities & BDI_CAP_STABLE_WRITES; +} + static inline bool bdi_cap_writeback_dirty(struct backing_dev_info *bdi) { return !(bdi->capabilities & BDI_CAP_NO_WRITEBACK); |