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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-10 15:51:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-10 15:51:48 -0800
commit54c2c5761febcca46c8037d3a81612991e6c209a (patch)
treee6a686088f16e182138bdf8ae13f6cd27b8613b0 /Documentation
parent609eac1c152353ee4cd6f292d49f0aa0b885951a (diff)
parentff9cb1c4eead5e4c292e75cd3170a82d66944101 (diff)
downloadlinux-linaro-stable-54c2c5761febcca46c8037d3a81612991e6c209a.tar.gz
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Ext4 commits for 3.3 merge window * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (32 commits) ext4: fix undefined behavior in ext4_fill_flex_info() ext4: make more symbols static ext4: make local symbol ext4_initxattrs static jbd2: fix hung processes in jbd2_journal_lock_updates() ext4: reserve new feature flag codepoints ext4: Report max_batch_time option correctly ext4: add missing ext4_resize_end on error paths ext4: let ext4_group_add() use common code ext4: let ext4_group_extend() use common code ext4: add new online resize interface ext4: add a new function which adds a flex group to a fs ext4: add a new function which allocates bitmaps and inode tables ext4: pass verify_reserved_gdb() the number of group decriptors ext4: add a function which updates the super block during online resizing ext4: add a function which sets up a block group descriptors of a flex bg ext4: add a function which sets up group blocks of a flex bg ext4: add a structure which will be used by 64bit-resize interface ext4: add a function which adds a new group descriptors to a fs ext4: add a function which extends a group without checking parameters ext4: use proper little-endian bitops ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/filesystems/ext4.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt
index 4917cf24a5e0..10ec4639f152 100644
--- a/Documentation/filesystems/ext4.txt
+++ b/Documentation/filesystems/ext4.txt
@@ -581,6 +581,13 @@ Table of Ext4 specific ioctls
behaviour may change in the future as it is
not necessary and has been done this way only
for sake of simplicity.
+
+ EXT4_IOC_RESIZE_FS Resize the filesystem to a new size. The number
+ of blocks of resized filesystem is passed in via
+ 64 bit integer argument. The kernel allocates
+ bitmaps and inode table, the userspace tool thus
+ just passes the new number of blocks.
+
..............................................................................
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