diff options
Diffstat (limited to 'Documentation/filesystems/ext4.txt')
-rw-r--r-- | Documentation/filesystems/ext4.txt | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt index 97882df04865..7be02ac5fa36 100644 --- a/Documentation/filesystems/ext4.txt +++ b/Documentation/filesystems/ext4.txt | |||
@@ -235,6 +235,10 @@ minixdf Make 'df' act like Minix. | |||
235 | 235 | ||
236 | debug Extra debugging information is sent to syslog. | 236 | debug Extra debugging information is sent to syslog. |
237 | 237 | ||
238 | abort Simulate the effects of calling ext4_abort() for | ||
239 | debugging purposes. This is normally used while | ||
240 | remounting a filesystem which is already mounted. | ||
241 | |||
238 | errors=remount-ro Remount the filesystem read-only on an error. | 242 | errors=remount-ro Remount the filesystem read-only on an error. |
239 | errors=continue Keep going on a filesystem error. | 243 | errors=continue Keep going on a filesystem error. |
240 | errors=panic Panic and halt the machine if an error occurs. | 244 | errors=panic Panic and halt the machine if an error occurs. |
@@ -294,7 +298,7 @@ max_batch_time=usec Maximum amount of time ext4 should wait for | |||
294 | amount of time (on average) that it takes to | 298 | amount of time (on average) that it takes to |
295 | finish committing a transaction. Call this time | 299 | finish committing a transaction. Call this time |
296 | the "commit time". If the time that the | 300 | the "commit time". If the time that the |
297 | transactoin has been running is less than the | 301 | transaction has been running is less than the |
298 | commit time, ext4 will try sleeping for the | 302 | commit time, ext4 will try sleeping for the |
299 | commit time to see if other operations will join | 303 | commit time to see if other operations will join |
300 | the transaction. The commit time is capped by | 304 | the transaction. The commit time is capped by |
@@ -328,7 +332,7 @@ noauto_da_alloc replacing existing files via patterns such as | |||
328 | journal commit, in the default data=ordered | 332 | journal commit, in the default data=ordered |
329 | mode, the data blocks of the new file are forced | 333 | mode, the data blocks of the new file are forced |
330 | to disk before the rename() operation is | 334 | to disk before the rename() operation is |
331 | commited. This provides roughly the same level | 335 | committed. This provides roughly the same level |
332 | of guarantees as ext3, and avoids the | 336 | of guarantees as ext3, and avoids the |
333 | "zero-length" problem that can happen when a | 337 | "zero-length" problem that can happen when a |
334 | system crashes before the delayed allocation | 338 | system crashes before the delayed allocation |
@@ -358,7 +362,7 @@ written to the journal first, and then to its final location. | |||
358 | In the event of a crash, the journal can be replayed, bringing both data and | 362 | In the event of a crash, the journal can be replayed, bringing both data and |
359 | metadata into a consistent state. This mode is the slowest except when data | 363 | metadata into a consistent state. This mode is the slowest except when data |
360 | needs to be read from and written to disk at the same time where it | 364 | needs to be read from and written to disk at the same time where it |
361 | outperforms all others modes. Curently ext4 does not have delayed | 365 | outperforms all others modes. Currently ext4 does not have delayed |
362 | allocation support if this data journalling mode is selected. | 366 | allocation support if this data journalling mode is selected. |
363 | 367 | ||
364 | References | 368 | References |