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
76 This ext4 feature provides file-system level encryption of data blocks
84 on single-user systems, encryption at the block device layer using
85 dm-crypt may provide much better security.
128 This ext4 feature allows the per-block group metadata (allocation
133 will place the per-block group metadata together starting at the first
136 .B \-G
143 .B \-j
164 .B \-J
191 .\" .B Future feature, available in e2fsprogs 1.43-WIP
195 This ext4 feature allows file systems to be resized on-line without explicitly
202 necessary when doing an online resize and no more reserved space is
218 the project ID of inode will be managed when the filesystem is mounted.
305 % mount /k \-o minixdf; df /k; umount /k
310 Filesystem#1024-blocks#Used#Available#Capacity#Mounted on
314 % mount /k \-o bsddf; df /k; umount /k
319 Filesystem#1024-blocks#Used#Available#Capacity#Mounted on
331 every now and then, e.g.\& at boot time. The non-default behavior is unsupported
341 or remount the filesystem read-only, or panic and halt the system.)
347 These options define what group id a newly created file gets.
350 is set, it takes the group id of the directory in which it is created;
362 Disables 32-bit UIDs and GIDs.  This is for interoperability with older
363 kernels which only store and expect 16-bit values.
385 has a \-s (sparse superblock) option to reduce the number of backup
435 This is rumoured to be the highest-throughput option.  It guarantees
451 barriers again with a warning.  Write barriers enforce proper on-disk ordering
453 performance penalty.  If your disks are battery-backed in one way or another,
456 .BI commit= nrsec
472 advantage that even after a crash no quota check is required.
480 .B journal_dev, norecovery, noload, data, commit, orlov, oldalloc, [no]user_xattr
481 .B [no]acl, bsddf, minixdf, debug, errors, data_err, grpid, bsdgroups, nogrpid
492 Commit block can be written to disk without waiting for descriptor blocks. If
505 ext4's inode table readahead algorithm will pre-read into the buffer cache.
514 Deferring block allocation until write-out time.
523 write operation is going to force a commit and then a wait for the I/O
528 takes to finish committing a transaction. Call this time the "commit time".
529 If the time that the transaction has been running is less than the commit time,
530 ext4 will try sleeping for the commit time to see if other operations will join
531 the transaction. The commit time is capped by the max_batch_time, which
536 This parameter sets the commit time (as described above) to be at least
538 may improve the throughput of multi-threaded, synchronous workloads on very
543 used for I/O operations submitted by kjournald2 during a commit operation.
562 If auto_da_alloc is enabled, ext4 will detect the replace-via-rename and
563 replace-via-truncate patterns and force that any delayed allocation blocks are
564 allocated such that at the next journal commit, in the default data=ordered
567 ext3, and avoids the "zero-length" problem that can happen when a system
584 sparse/thinly-provisioned LUNs, but it is off by default until sufficient
588 This options enables/disables the in-kernel facility for tracking
589 filesystem metadata blocks within internal data structures. This allows multi-\c
601 Note that dioread_nolock code path is only used for extent-based files.
608 useful in memory-constrained environments, where a very large directory can
614 Enable 64-bit inode version support. This option is off by default.