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| author |   Tim Yamin <plasmaroo@gentoo.org> | 2003-10-02 22:11:41 +0000 |
|---|---|---|
| committer | Tim Yamin <plasmaroo@gentoo.org> | 2003-10-02 22:11:41 +0000 |
| commit | 8c6deaf748565ae52a17007020424fc7b5bdb0c4 (patch) | |
| tree | 042f04f87301ddadb32c1d955e4a7545ce3a01ac /sys-kernel/gentoo-sources/files | |
| parent | Update manifest (diff) | |
| download | gentoo-2-8c6deaf748565ae52a17007020424fc7b5bdb0c4.tar.gz gentoo-2-8c6deaf748565ae52a17007020424fc7b5bdb0c4.tar.bz2 gentoo-2-8c6deaf748565ae52a17007020424fc7b5bdb0c4.zip | |
Added a Software RAID reference counter fix, bug #30124.
Diffstat (limited to 'sys-kernel/gentoo-sources/files')
| -rw-r--r-- | sys-kernel/gentoo-sources/files/gentoo-sources-2.4.20-mdcount.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/sys-kernel/gentoo-sources/files/gentoo-sources-2.4.20-mdcount.patch b/sys-kernel/gentoo-sources/files/gentoo-sources-2.4.20-mdcount.patch new file mode 100644 index 000000000000..abfd1f66f8f3 --- /dev/null +++ b/sys-kernel/gentoo-sources/files/gentoo-sources-2.4.20-mdcount.patch @@ -0,0 +1,43 @@ +[plasmaroo@gentoo.org]: Patch backported from 2.4.22-pre9... + +Because an md array may not exist yet when the device it opened, the ->active +count, which is incremented on opening if the array exists, is not 100% reliable. +This patch changes md to test inode->i_bdev->bd_openers rather than mddev->active +to test if an array is still in used before stopping it. + +diff ./drivers/md/md.c~current~ ./drivers/md/md.c +--- ./drivers/md/md.c~current~ 2003-09-04 11:32:15.000000000 +1000 ++++ ./drivers/md/md.c 2003-09-04 11:32:14.000000000 +1000 +@@ -1805,10 +1805,12 @@ static int do_md_stop(mddev_t * mddev, i + int err = 0, resync_interrupted = 0; + kdev_t dev = mddev_to_kdev(mddev); + ++#if 0 /* ->active is not currently reliable */ + if (atomic_read(&mddev->active)>1) { + printk(STILL_IN_USE, mdidx(mddev)); + OUT(-EBUSY); + } ++#endif + + if (mddev->pers) { + /* +@@ -2742,12 +2744,17 @@ static int md_ioctl(struct inode *inode, + goto done_unlock; + + case STOP_ARRAY: +- if (!(err = do_md_stop (mddev, 0))) ++ if (inode->i_bdev->bd_openers > 1) ++ err = -EBUSY; ++ else if (!(err = do_md_stop (mddev, 0))) + mddev = NULL; + goto done_unlock; + + case STOP_ARRAY_RO: +- err = do_md_stop (mddev, 1); ++ if (inode->i_bdev->bd_openers > 1) ++ err = -EBUSY; ++ else ++ err = do_md_stop (mddev, 1); + goto done_unlock; + + /* |