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NeilBrown 32a7627cf3 [PATCH] md: optimised resync using Bitmap based intent logging ... With this patch, the intent to write to some block in the array can be logged to a bitmap file. Each bit represents some number of sectors and is set before any update happens, and only cleared when all writes relating to all sectors are complete. After an unclean shutdown, information in this bitmap can be used to optimise resync - only sectors which could be out-of-sync need to be updated. Also if a drive is removed and then added back into an array, the recovery can make use of the bitmap to optimise reconstruction. This is not implemented in this patch. Currently the bitmap is stored in a file which must (obviously) be stored on a separate device. The patch only provided infrastructure. It does not update any personalities to bitmap intent logging. Md arrays can still be used with no bitmap file. This patch has minimal impact on such arrays. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		20 years ago
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bitmap.h	[PATCH] md: optimised resync using Bitmap based intent logging	20 years ago
linear.h	Linux-2.6.12-rc2	20 years ago
md.h	[PATCH] md: improve locking on 'safemode' and move superblock writes	20 years ago
md_k.h	[PATCH] md: optimised resync using Bitmap based intent logging	20 years ago
md_p.h	Linux-2.6.12-rc2	20 years ago
md_u.h	[PATCH] md: optimised resync using Bitmap based intent logging	20 years ago
multipath.h	Linux-2.6.12-rc2	20 years ago
raid0.h	Linux-2.6.12-rc2	20 years ago
raid1.h	Linux-2.6.12-rc2	20 years ago
raid5.h	Linux-2.6.12-rc2	20 years ago
raid10.h	Linux-2.6.12-rc2	20 years ago
xor.h	Linux-2.6.12-rc2	20 years ago