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CVS log for src/sys/ufs/ufs/ufs_rename.c

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Default branch: MAIN
Current tag: localcount-20160914


Revision 1.12 / (download) - annotate - [select for diffs], Fri Mar 27 17:27:56 2015 UTC (9 years ago) by riastradh
Branch: MAIN
CVS Tags: pgoyette-localcount-base, pgoyette-localcount-20160806, pgoyette-localcount-20160726, nick-nhusb-base-20161004, nick-nhusb-base-20160907, nick-nhusb-base-20160529, nick-nhusb-base-20160422, nick-nhusb-base-20160319, nick-nhusb-base-20151226, nick-nhusb-base-20150921, nick-nhusb-base-20150606, nick-nhusb-base-20150406, localcount-20160914
Branch point for: pgoyette-localcount
Changes since 1.11: +4 -4 lines
Diff to previous 1.11 (colored)

Disentangle buffer-cached I/O from page-cached I/O in UFS.

Page-cached I/O is used for regular files, and is initiated by VFS
users such as userland and NFS.

Buffer-cached I/O is used for directories and symlinks, and is issued
only internally by UFS.

New UFS routine ufs_bufio replaces vn_rdwr for internal use.
ufs_bufio is implemented by new UFS operations uo_bufrd/uo_bufwr,
which sit in ufs_readwrite.c alongside the VOP_READ/VOP_WRITE
implementations.

I preserved the code as much as possible and will leave further
simplification for future commits.  I kept the ulfs_readwrite.c
copypasta close to ufs_readwrite.c in case we ever want to merge them
back; likewise ext2fs_readwrite.c.

No externally visible semantic change.  All atf fs tests still pass.

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