aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/backing-dev.h
diff options
context:
space:
mode:
authorLen Brown <len.brown@intel.com>2008-10-22 23:57:26 -0400
committerLen Brown <len.brown@intel.com>2008-10-23 00:11:07 -0400
commit057316cc6a5b521b332a1d7ccc871cd60c904c74 (patch)
tree4333e608da237c73ff69b10878025cca96dcb4c8 /include/linux/backing-dev.h
parent3e2dab9a1c2deb03c311eb3f83466009147ed4d3 (diff)
parent2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff)
Merge branch 'linus' into test
Conflicts: MAINTAINERS arch/x86/kernel/acpi/boot.c arch/x86/kernel/acpi/sleep.c drivers/acpi/Kconfig drivers/pnp/Makefile drivers/pnp/quirks.c Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/linux/backing-dev.h')
-rw-r--r--include/linux/backing-dev.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 0a24d5550eb3..bee52abb8a4d 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -175,6 +175,8 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio);
175 * BDI_CAP_READ_MAP: Can be mapped for reading 175 * BDI_CAP_READ_MAP: Can be mapped for reading
176 * BDI_CAP_WRITE_MAP: Can be mapped for writing 176 * BDI_CAP_WRITE_MAP: Can be mapped for writing
177 * BDI_CAP_EXEC_MAP: Can be mapped for execution 177 * BDI_CAP_EXEC_MAP: Can be mapped for execution
178 *
179 * BDI_CAP_SWAP_BACKED: Count shmem/tmpfs objects as swap-backed.
178 */ 180 */
179#define BDI_CAP_NO_ACCT_DIRTY 0x00000001 181#define BDI_CAP_NO_ACCT_DIRTY 0x00000001
180#define BDI_CAP_NO_WRITEBACK 0x00000002 182#define BDI_CAP_NO_WRITEBACK 0x00000002
@@ -184,6 +186,7 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio);
184#define BDI_CAP_WRITE_MAP 0x00000020 186#define BDI_CAP_WRITE_MAP 0x00000020
185#define BDI_CAP_EXEC_MAP 0x00000040 187#define BDI_CAP_EXEC_MAP 0x00000040
186#define BDI_CAP_NO_ACCT_WB 0x00000080 188#define BDI_CAP_NO_ACCT_WB 0x00000080
189#define BDI_CAP_SWAP_BACKED 0x00000100
187 190
188#define BDI_CAP_VMFLAGS \ 191#define BDI_CAP_VMFLAGS \
189 (BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP) 192 (BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP)
@@ -248,6 +251,11 @@ static inline bool bdi_cap_account_writeback(struct backing_dev_info *bdi)
248 BDI_CAP_NO_WRITEBACK)); 251 BDI_CAP_NO_WRITEBACK));
249} 252}
250 253
254static inline bool bdi_cap_swap_backed(struct backing_dev_info *bdi)
255{
256 return bdi->capabilities & BDI_CAP_SWAP_BACKED;
257}
258
251static inline bool mapping_cap_writeback_dirty(struct address_space *mapping) 259static inline bool mapping_cap_writeback_dirty(struct address_space *mapping)
252{ 260{
253 return bdi_cap_writeback_dirty(mapping->backing_dev_info); 261 return bdi_cap_writeback_dirty(mapping->backing_dev_info);
@@ -258,4 +266,9 @@ static inline bool mapping_cap_account_dirty(struct address_space *mapping)
258 return bdi_cap_account_dirty(mapping->backing_dev_info); 266 return bdi_cap_account_dirty(mapping->backing_dev_info);
259} 267}
260 268
269static inline bool mapping_cap_swap_backed(struct address_space *mapping)
270{
271 return bdi_cap_swap_backed(mapping->backing_dev_info);
272}
273
261#endif /* _LINUX_BACKING_DEV_H */ 274#endif /* _LINUX_BACKING_DEV_H */