- 17 3月, 2006 23 次提交
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25499a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25498a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25497a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25496a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25495a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25494a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25493a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25492a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25491a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25490a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25489a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25487a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25486a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25485a Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 943272 SGI-Modid: xfs-linux-melb:xfs-kern:25484a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
else we can hit a delalloc-extents-via-direct-io BUG. SGI-PV: 949916 SGI-Modid: xfs-linux-melb:xfs-kern:25483a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
another ENOSPC condition. SGI-PV: 950784 SGI-Modid: xfs-linux-melb:xfs-kern:25482a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
prep for nobh, someday, maybe). SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:25481a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:25480a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
detected. Thanks to Roger Willcocks. SGI-PV: 951054 SGI-Modid: xfs-linux-melb:xfs-kern:25477a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:25476a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 947038 SGI-Modid: xfs-linux-melb:xfs-kern:25474a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Mandy Kirkconnell 提交于
xfs_bmap_search_multi_extents() wrapper function that I introduced in mod xfs-linux:xfs-kern:207393a. The function was added as a wrapper around xfs_bmap_do_search_extents() to avoid breaking the top-of-tree CXFS interface. The idea of the function was basically to extract the target extent buffer (if muli- level extent allocation mode), then call xfs_bmap_do_search_extents() with either a pointer to the first extent in the target buffer or a pointer to the first extent in the file, depending on which extent mode was being used. However, in addition to locating the target extent record for block bno, xfs_bmap_do_search_extents() also sets four parameters needed by the caller: *lastx, *eofp, *gotp, *prevp. Passing only the target extent buffer to xfs_bmap_do_search_extents() causes *eofp to be set incorrectly if the extent is at the end of the target list but there are actually more extents in the next er_extbuf. Likewise, if the extent is the first one in the buffer but NOT the first in the file, *prevp is incorrectly set to NULL. Adding the needed functionality to xfs_bmap_search_multi_extents() to re-set any incorrectly set fields is redundant and makes the call to xfs_bmap_do_search_extents() not make much sense when multi-level extent allocation mode is being used. This mod basically extracts the two functional components from xfs_bmap_do_search_extents(), with the intent of obsoleting/removing xfs_bmap_do_search_extents() after the CXFS mult-level in-core extent changes are checked in. The two components are: 1) The binary search to locate the target extent record, and 2) Setting the four parameters needed by the caller (*lastx, *eofp, *gotp, *prevp). Component 1: I created a new function in xfs_inode.c called xfs_iext_bno_to_ext(), which executes the binary search to find the target extent record. xfs_bmap_search_multi_extents() has been modified to call xfs_iext_bno_to_ext() rather than xfs_bmap_do_search_extents(). Component 2: The parameter setting functionality has been added to xfs_bmap_search_multi_extents(), eliminating the need for xfs_bmap_do_search_extents(). These changes make the removal of xfs_bmap_do_search_extents() trival once the CXFS changes are in place. They also allow us to maintain the current XFS interface, using the new search function introduced in mod xfs-linux:xfs-kern:207393a. SGI-PV: 928864 SGI-Modid: xfs-linux-melb:xfs-kern:207866a Signed-off-by: NMandy Kirkconnell <alkirkco@sgi.com> Signed-off-by: NNathan Scott <nathans@sgi.com>
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- 14 3月, 2006 17 次提交
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由 Nathan Scott 提交于
help here and vattr may be small enough. SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:25423a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
stack footprint in xfs_ialloc_ag_alloc. SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:25420a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Mandy Kirkconnell 提交于
SGI-PV: 950678 SGI-Modid: xfs-linux-melb:xfs-kern:207634a Signed-off-by: NMandy Kirkconnell <alkirkco@sgi.com> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
consistent naming. SGI-PV: 950556 SGI-Modid: xfs-linux-melb:xfs-kern:25382a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
naming. SGI-PV: 950556 SGI-Modid: xfs-linux-melb:xfs-kern:25381a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
naming. SGI-PV: 950556 SGI-Modid: xfs-linux-melb:xfs-kern:25379a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
naming. SGI-PV: 950556 SGI-Modid: xfs-linux-melb:xfs-kern:25378a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 950556 SGI-Modid: xfs-linux-melb:xfs-kern:25377a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
splitting realtime/btree allocators apart. Based on Glens original patches. SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:25372a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
and directly testing flags instead. SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:25370a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
reduce stack use. Also re-use vattr in some places so that multiple copies are not held on-stack. SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:25369a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:25361a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
into functions and hence reduce the stack footprint there. SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:25360a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
pressure in xfs_dir2_leaf_getdents routine. SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:25359a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Nathan Scott 提交于
to reduce stack footprint. SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:25358a Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Mandy Kirkconnell 提交于
functionality, building upon the new layout introduced in mod xfs-linux:xfs-kern:207390a. The new multi-level extent allocations are only required for heavily fragmented files, so the old-style linear extent list is used on files until the extents reach a pre-determined size of 4k. 4k buffers are used because this is the system page size on Linux i386 and systems with larger page sizes don't seem to gain much, if anything, by using their native page size as the extent buffer size. Also, using 4k extent buffers everywhere provides a consistent interface for CXFS across different platforms. The 4k extent buffers are managed by an indirection array (xfs_ext_irec_t) which is basically just a pointer array with a bit of extra information to keep track of the number of extents in each buffer as well as the extent offset of each buffer. Major changes include: - Add multi-level in-core file extent functionality to the xfs_iext_ subroutines introduced in mod: xfs-linux:xfs-kern:207390a - Introduce 13 new subroutines which add functionality for multi-level in-core file extents: xfs_iext_add_indirect_multi() xfs_iext_remove_indirect() xfs_iext_realloc_indirect() xfs_iext_indirect_to_direct() xfs_iext_bno_to_irec() xfs_iext_idx_to_irec() xfs_iext_irec_init() xfs_iext_irec_new() xfs_iext_irec_remove() xfs_iext_irec_compact() xfs_iext_irec_compact_pages() xfs_iext_irec_compact_full() xfs_iext_irec_update_extoffs() SGI-PV: 928864 SGI-Modid: xfs-linux-melb:xfs-kern:207393a Signed-off-by: NMandy Kirkconnell <alkirkco@sgi.com> Signed-off-by: NNathan Scott <nathans@sgi.com>
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由 Mandy Kirkconnell 提交于
code to prepare for an upcoming mod which will introduce multi-level in-core extent allocations. Although the in-core extent management is using a new code path in this mod, the functionality remains the same. Major changes include: - Introduce 10 new subroutines which re-orgainze the existing code but do NOT change functionality: xfs_iext_get_ext() xfs_iext_insert() xfs_iext_add() xfs_iext_remove() xfs_iext_remove_inline() xfs_iext_remove_direct() xfs_iext_realloc_direct() xfs_iext_direct_to_inline() xfs_iext_inline_to_direct() xfs_iext_destroy() - Remove 2 subroutines (functionality moved to new subroutines above): xfs_iext_realloc() -replaced by xfs_iext_add() and xfs_iext_remove() xfs_bmap_insert_exlist() - replaced by xfs_iext_insert() xfs_bmap_delete_exlist() - replaced by xfs_iext_remove() - Replace all hard-coded (indexed) extent assignments with a call to xfs_iext_get_ext() - Replace all extent record pointer arithmetic (ep++, ep--, base + lastx,..) with calls to xfs_iext_get_ext() - Update comments to remove the idea of a single "extent list" and introduce "extent record" terminology instead SGI-PV: 928864 SGI-Modid: xfs-linux-melb:xfs-kern:207390a Signed-off-by: NMandy Kirkconnell <alkirkco@sgi.com> Signed-off-by: NNathan Scott <nathans@sgi.com>
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