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...btrfs is created +spanning across the specified \fI devices\fP. +.SH OPTIONS +.TP +\fB\-A\fR, \fB\-\-alloc\-start \fIoffset\fR +Specify the offset from the start of the device to start the btrfs filesystem. The default value is zero, or the start of the device. +.TP +\fB\-b\fR, \fB\-\-byte\-count \fIsize\fR +Specify the size of the resultant filesystem. If this option is not used, +mkfs.btrfs uses all the available storage for the filesystem. +.TP +\fB\-d\fR, \fB\-\-data \fItype\fR +Specify how the data must be spanned across the devices specified. Valid +values are raid0, raid1, raid10 or singl...

...he entire b-tree under the directory is defragged. +.TP +\fB\-s\fR \fIsnapshot-name directory\fR +Creates a new \fIsnapshot\fP of the \fIdirectory\fP specified. +.TP +\fB\-S\fR \fIsubvolume-name directory\fR +Creates a new subvolume. +.TP +\fB\-r\fR \fI[+|-]size\fR +Resizes the filesystem with the \fIsize\fP specified. If the value is preceded with a signed symbol, the filesystem is resized with respect to the current filesystem size. \fIsize\fP can be suffixed by k,m or g to represent kilobytes, megabytes, or gigabytes respectively. +.TP +\fB\-A\fR \fIdevice\fR +Scans the \fIdevice\fR for btrfs fi...

...\fB\\$1\fP in \fB\\$2\fP for details. +.. +.TH POOL_ALLOC 3 +.SH NAME +pool_alloc, pool_free, pool_talloc, pool_tfree, pool_create, pool_destroy +\- Allocate and free memory in managed allocation pools. +.SH SYNOPSIS +.B #include "pool_alloc.h" + +\fBstruct alloc_pool *pool_create(size_t \fIsize\fB, size_t \fIquantum\fB, void (*\fIbomb\fB)(char *), int \fIflags\fB); + +\fBvoid pool_destroy(struct alloc_pool *\fIpool\fB); + +\fBvoid *pool_alloc(struct alloc_pool *\fIpool\fB, size_t \fIsize\fB, char *\fImsg\fB); + +\fBvoid pool_free(struct alloc_pool *\fIpool\fB, sise_t \fIsize\fB, void *\f...

- Add incompat flag, otherwise btrfs-progs will report error when operating on btrfs filesystems mounted with lzo option. - Allow to turn on lzo compression for defrag operation: # btrfs filesystem defragment -c[zlib, lzo] <file> Note: "-c zlib" will fail, because that''s how getopt() works for optional arguments. Signed-off-by: Li Zefan

The following series implement a way to generate the help messages and the btrfs man page from the sources comments for the "btrfs" commanda . The syntax and the detailed help of every subcommand are stored in the comments before the function which implements the subcommand. The fact that the help messages and the man page are generated from the same source should help to avoid

From: Anand Jain <anand.jain@oracle.com> (This patch is for the review/test not yet for the integration). Here is an implementation of the feature to add label to the subvolume and snapshots. Which would help sysadmin to better manager the subvol and snapshots. This can be done in two ways, one - using attr which is user land only changes but drawback is able to change the label