Lines Matching +full:- +full:- +full:no +full:- +full:commit +full:- +full:id
1 .\" -*- nroff -*-
7 ext2 \- the second extended file system
9 ext3 \- the third extended file system
11 ext4 \- the fourth extended file system
49 .B mke2fs \-C
66 Use hashed b-trees to speed up name lookups in large directories. This
72 Normally, ext4 allows an inode to have no more than 65,000 hard links.
74 there can be no more than 64,998 subdirectories in a directory (because
91 This ext4 feature provides file-system level encryption of data blocks
99 on single-user systems, encryption at the block device layer using
100 dm-crypt may provide much better security.
143 This ext4 feature allows the per-block group metadata (allocation
148 will place the per-block group metadata together starting at the first
151 .B \-G
158 .B \-j
179 .B \-J
189 raising the maximum size of directories and, for hashed b-tree directories (see
191 the maximum height of the hashed b-tree used to store the directory entries.
223 This ext4 feature allows file systems to be resized on-line without explicitly
230 necessary when doing an online resize and no more reserved space is
242 the project ID of inode will be managed when the filesystem is mounted.
335 % mount /k \-o minixdf; df /k; umount /k
340 Filesystem#1024-blocks#Used#Available#Capacity#Mounted on
344 % mount /k \-o bsddf; df /k; umount /k
349 Filesystem#1024-blocks#Used#Available#Capacity#Mounted on
361 every now and then, e.g.\& at boot time. The non-default behavior is unsupported
371 or remount the filesystem read-only, or panic and halt the system.)
377 These options define what group id a newly created file gets.
380 is set, it takes the group id of the directory in which it is created;
392 Disables 32-bit UIDs and GIDs. This is for interoperability with older
393 kernels which only store and expect 16-bit values.
420 .B \-n
473 This is rumoured to be the highest-throughput option. It guarantees
489 barriers again with a warning. Write barriers enforce proper on-disk ordering
491 performance penalty. If your disks are battery-backed in one way or another,
494 .BI commit= nrsec
495 Start a journal commit every
508 even after a crash no quota check is required. When the
527 .B journal_dev, journal_path, norecovery, noload, data, commit, orlov,
528 .B oldalloc, [no]user_xattr, [no]acl, bsddf, minixdf, debug, errors,
539 Commit block can be written to disk without waiting for descriptor blocks. If
552 ext4's inode table readahead algorithm will pre-read into the buffer cache.
561 Deferring block allocation until write-out time.
570 write operation is going to force a commit and then a wait for the I/O
575 takes to finish committing a transaction. Call this time the "commit time".
576 If the time that the transaction has been running is less than the commit time,
577 ext4 will try sleeping for the commit time to see if other operations will join
578 the transaction. The commit time is capped by the max_batch_time, which
583 This parameter sets the commit time (as described above) to be at least
585 may improve the throughput of multi-threaded, synchronous workloads on very
590 used for I/O operations submitted by kjournald2 during a commit operation.
609 If auto_da_alloc is enabled, ext4 will detect the replace-via-rename and
610 replace-via-truncate patterns and force that any delayed allocation blocks are
611 allocated such that at the next journal commit, in the default data=ordered
614 ext3, and avoids the "zero-length" problem that can happen when a system
631 sparse/thinly-provisioned LUNs, but it is off by default until sufficient
635 This option enables/disables the in-kernel facility for tracking
636 filesystem metadata blocks within internal data structures. This allows multi-\c
648 Note that dioread_nolock code path is only used for extent-based files.
655 useful in memory-constrained environments, where a very large directory can
661 Enable 64-bit inode version support. This option is off by default.