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Fix 'zfs set volsize=N pool/dataset'

Browse Source 
This change fixes a kernel panic which would occur when resizing
a dataset which was not open.  The objset_t stored in the
zvol_state_t will be set to NULL when the block device is closed.
To avoid this issue we pass the correct objset_t as the third arg.

The code has also been updated to correctly notify the kernel
when the block device capacity changes.  For 2.6.28 and newer
kernels the capacity change will be immediately detected.  For
earlier kernels the capacity change will be detected when the
device is next opened.  This is a known limitation of older
kernels.

Online ext3 resize test case passes on 2.6.28+ kernels:
$ dd if=/dev/zero of=/tmp/zvol bs=1M count=1 seek=1023
$ zpool create tank /tmp/zvol
$ zfs create -V 500M tank/zd0
$ mkfs.ext3 /dev/zd0
$ mkdir /mnt/zd0
$ mount /dev/zd0 /mnt/zd0
$ df -h /mnt/zd0
$ zfs set volsize=800M tank/zd0
$ resize2fs /dev/zd0
$ df -h /mnt/zd0

Original-patch-by: Fajar A. Nugraha <github@fajar.net>
Closes #68
Closes #84
This commit is contained in:
Brian Behlendorf
2011-02-25 14:36:01 +07:00
parent e90a3de3e8
commit df554c148e
57 changed files with 167 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/Makefile.in
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@@ -51,6 +51,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libavl/Makefile.in
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libefi/Makefile.in
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libnvpair/Makefile.in
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libspl/Makefile.in
+1
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libspl/asm-generic/Makefile.in
+1
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@@ -52,6 +52,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libspl/asm-i386/Makefile.in
+1
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libspl/asm-x86_64/Makefile.in
+1
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libspl/include/Makefile.in
+1
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libspl/include/ia32/Makefile.in
+1
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@@ -51,6 +51,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libspl/include/ia32/sys/Makefile.in
+1
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libspl/include/rpc/Makefile.in
+1
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libspl/include/sys/Makefile.in
+1
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libspl/include/sys/dktp/Makefile.in
+1
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libspl/include/sys/sysevent/Makefile.in
+1
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libspl/include/util/Makefile.in
+1
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libunicode/Makefile.in
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libuutil/Makefile.in
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libzfs/Makefile.in
+1
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \
lib/libzpool/Makefile.in
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@@ -53,6 +53,7 @@ am__aclocal_m4_deps = \
$(top_srcdir)/config/kernel-blk-rq-pos.m4 \
$(top_srcdir)/config/kernel-blk-rq-sectors.m4 \
$(top_srcdir)/config/kernel-blkdev-get-by-path.m4 \
$(top_srcdir)/config/kernel-check-disk-size-change.m4 \
$(top_srcdir)/config/kernel-d-obtain-alias.m4 \
$(top_srcdir)/config/kernel-evict-inode.m4 \
$(top_srcdir)/config/kernel-fmode-t.m4 \