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2011-04-01copy: process empty extents more efficientlyPádraig Brady
* src/copy.c (extent_copy): Treat an allocated but empty extent much like a hole. I.E. don't read data we know is going to be NUL. Also we convert the empty extent to a hole only when SPARSE_ALWAYS so that the source and dest have the same allocation. This will be improved soon, when we use fallocate() to do the allocation. * tests/cp/fiemap-empty: A new test for efficiency and correctness of copying empty extents. * tests/Makefile.am: Reference the new test. * NEWS: Mention the change in behavior.
2011-04-01copy: protect against overlapping extentsPádraig Brady
* src/extent-scan.c (extent_scan_read): Add a more stringent check for OFF_T overflow, to ensure subsequent code is immune. Detect overlapping extents and adjust, so as files always copied. Detection using a single scan with fallback to a standard copy was thought too expensive in memory or time. * NEWS: Mention the fix
2011-04-01copy: link rather than copy symlinks, when --link usedPádraig Brady
This bug was introduced in commit ca9e212c, 2009-09-24, "cp, mv: use linkat to guarantee semantics", which inadvertently disabled the creation of hardlinks to symlinks. However rather than implementing the intention of that commit and relying on gnulib linkat emulation, we'll revert to the previous emulation as that maintains ownership and timestamps. * src/copy.c (copy_internal): Use our existing hardlink to symlink emulation when link() might dereference the symlink. Also ensure that we copy the timestamps of the original symlink when we use the emulation. * tests/cp/link-symlink: Add a test to ensure timestamps copied. * tests/Makefile.am: Reference the new test. * NEWS: Mention the fix. Reported by Ruediger Meier
2011-03-31copy: with fiemap copy, only sync when neededPádraig Brady
* src/extent-scan.h (struct extent_scan): Add the fm_flags member to pass to the fiemap scan. * src/extent-scan.c (extent_need_sync): A new function used to detect Linux kernels before 2.6.38. (extent_scan_init): Add FIEMAP_FLAG_SYNC when needed. * tests/cp/sparse-fiemap: Adjust comment. * NEWS: Mention the change in behavior. Indirectly suggested by Mike Frysinger
2011-03-23df: fix alignment of columnsPádraig Brady
* src/df.c (alloc_table_row): A new function to allocate storage for a row of strings. (print_table): A new function to interate over all stored strings in the table, and apply alignment honoring the max width of each column. (get_header): Renamed from print_header, and adjusted accordingly. (get_dev): Renamed from show_dev. Also we no longer wrap longer device names over two lines, which can be an unexpected issue for scripts parsing the output from df. (get_disk): s/show_/get_/ (get_point): Likewise. (get_entry): Likewise. (get_all_entries): Likewise. * NEWS: Mention the change.
2011-03-22tests: exercise tests new "==" operatorJim Meyering
* tests/misc/test: Exercise the new operator. * NEWS (Changes in behavior): Mention it.
2011-03-13touch: update to latest gnulib to fix Solaris 10 touch segfaultJim Meyering
* gnulib: Update to latest, to address http://debbugs.gnu.org/8230. When built on Solaris 9 and run on Solaris 10, touch would segfault. Reported by Ben Walton. * bootstrap: Update from gnulib. * tests/init.sh: Likewise. * NEWS (Bug fixes): Mention this.
2011-03-13sort: spawn fewer threads for small inputsJim Meyering
* src/sort.c (SUBTHREAD_LINES_HEURISTIC): Do not spawn a new thread for every 4 lines. Increase this from 4 to 128K. 128K lines seems appropriate for a 5-year-old dual-core laptop, but it is too low for some common combinations of short lines and/or newer systems. * NEWS (Bug fixes): Mention it.
2011-03-05dd: add a flag to discard cached dataPádraig Brady
* src/dd.c (FFS_MASK): A new macro (Find First Set) refactored from the following enum as it's now used twice. (usage): Mention the new 'nocache' flag. (cache_round): A new function to help ignore requests to drop cache, that are less than page_size. (invalidate_cache): A new function to call posix_fadvise() with the appropriate offset and length. Note we don't use fdadvise() so we can detect errors when count=0. (dd_copy): Call invalidate_cache() for the portions read. (iwrite): Likewise for the portions written. (main): Call invalidate_cache for page_size slop or for full file when count=0. * cfg.mk (sc_dd_O_FLAGS): Adjust to pass. * doc/coreutils.texi (dd invocation): Describe the 'nocache' flag, and give some examples of how it can be used. * tests/dd/nocache: A new test. * tests/Makefile.am: Reference the new test. * NEWS: Mention the new feature.
2011-03-03du: don't infloop for --files0-from=DIRJim Meyering
* src/du.c (main): Fail on AI_ERR_READ error, rather than merely diagnosing and continuing. Based on a patch by Stefan Vargyas. Also move the handling of AI_ERR_EOF into the case stmt. Do not report ferror/fclose(stdin) failure when we've already diagnosed e.g., failure to read the DIR, above. Bug introduced by 2008-11-24 commit 031e2fb5, "du: read and process --files0-from= input a name at a time,". * src/wc.c: Handle read failure as with du: do not exit immediately, but rather go on to print any total and to clean-up. As above, move the handling of AI_ERR_EOF into the case stmt. * tests/du/files0-from-dir: New file, to test both du and wc. * tests/Makefile.am (TESTS): Add it. * NEWS (Bug fixes): Mention it.
2011-03-03wc: avoid NULL dereference on out-of-memory errorJim Meyering
* src/wc.c (main): Diagnose failed argv_iter_init_* failure, rather than falling through and dereferencing NULL. Bug introduced by 2008-11-25 commit c2e56e0d, "wc: read and process --files0-from= input a name at a time,". * NEWS (Bug fixes): Mention it.
2011-02-07cut: don't segfault for large unbounded rangeJim Meyering
* src/cut.c (set_fields): When computing the maximum range endpoint, take into consideration the start of any unbounded range, like "999-". * NEWS (Bug fixes): Mention it. * tests/misc/cut (big-unbounded-b,c,f): Add tests. Reported by Paul Marinescu in http://debbugs.gnu.org/7993 The bug was introduced on 2004-12-04 via commit 7380cf79.
2011-02-04post-release administriviaJim Meyering
* NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update.
2011-02-04version 8.10Jim Meyering
* NEWS: Record release date.
2011-01-30doc: NEWS: mention cp's improvementJim Meyering
* NEWS (New Features): cp now copies sparse files efficiently.
2011-01-29join: don't report disorder against an empty filePádraig Brady
This allows one to use join as a field extractor like: join -a1 -o 1.3,1.1 - /dev/null * src/join.c (join): Don't flag unpairable lines when one of the files is empty. * tests/misc/join: Add a new test for empty input, and adjust a previous test that was only checking against empty input. * doc/coreutils.texi (join invocation): Document the change. * NEWS: Likewise.
2011-01-29join: ensure --header skips the order check with empty filesPádraig Brady
* src/join.c: Skip the header even if one of the files is empty. * tests/misc/join: Add a test case. * NEWS: Mention the fix
2011-01-29join: add -o 'auto' to output a constant number of fields per linePádraig Brady
Lines with a different number of fields than the first line, will be truncated or padded. * src/join.c (prfields): A new function refactored from prjoin(), to output all but the join field. (prjoin): Don't swap line1 and line2 when line1 is blank so that the padding is applied to the right place. (main): Handle the -o 'auto' option. * tests/misc/join: Add 6 new cases to test the auto format. * NEWS: Mention the change in behavior. Suggestion from Assaf Gordon
2011-01-18doc: update NEWSJim Meyering
* NEWS: Note when the uniq bug was introduced. It was mine, commit 1d9b3de9, "uniq: remove redundant test".
2011-01-17uniq: don't continue field processing after end of lineSami Kerola
* NEWS (Bug fixes): Mention it. * src/uniq.c (find_field): Stop processing loop when end of line is reached. Before this fix, 'uniq -f 10000000000 /etc/passwd' would run for a very long time.
2011-01-11rm: ignore errno related to invalid file namesNadav Har'El
* src/remove.c (nonexistent_file_errno): Also skip EINVAL and EILSEQ, for at least smbfs rejection of '*' in file names. * NEWS: Mention the fix.
2011-01-10du: don't abort when a subdir is renamed during traversalJim Meyering
* NEWS (Bug fixes): Mention it. * src/du.c (prev_level): Move declaration "up" to file-scope global. (du_files): Reset prev_level to 0 upon abnormal fts_read termination. Reported by Johathan Nieder in http://bugs.debian.org/609049 Also, improve a diagnostic. * tests/du/move-dir-while-traversing: Test for the above. * tests/Makefile.am (TESTS): Add it.
2011-01-04post-release administriviaJim Meyering
* NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update.
2011-01-04version 8.9Jim Meyering
* NEWS: Record release date.
2011-01-01maint: update all copyright year number rangesJim Meyering
Run "make update-copyright".
2010-12-30split: fix the suffix length calculationPádraig Brady
* src/split.c (set_suffix_length): Only auto-calculate the suffix length when the number of files is specified. * tests/misc/split-a: Add a case to trigger the bug, and exercise the suffix length auto-calculation. * NEWS: Mention the fix. Reported by Dmitry V. Levin and Sergey Vlasov at https://bugzilla.altlinux.org/show_bug.cgi?id=24841
2010-12-22post-release administriviaJim Meyering
* NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update.
2010-12-22version 8.8Jim Meyering
* NEWS: Record release date.
2010-12-19sort: use at most 8 threads by defaultPádraig Brady
* src/sort.c (main): If --parallel isn't specified, restrict the number of threads to 8 by default. If the --parallel option is specified, then allow any number of threads to be set, independent of the number of processors on the system. * doc/coreutils.texi (sort invocation): Document the changes to determining the number of threads to use. Mention the memory overhead when using multiple threads. * tests/misc/sort-spinlock-abuse: Allow single core systems that support pthreads. * tests/misc/sort-stale-thread-mem: Likewise. * tests/misc/sort-unique-segv: Likewise. * NEWS: Mention the change in behaviour.
2010-12-16sort: do not generate thousands of subprocesses for 16-way mergePaul Eggert
Without this change, tests/misc/sort-compress-hang would consume more than 10,000 process slots on my RHEL 5.5 x86-64 server, making it likely for other applications to fail due to lack of process slots. With this change, the same benchmark causes 'sort' to consume at most 19 process slots. The change also improved wall-clock time by 2% and user+system time by 14% on that benchmark. * NEWS: Document this. * src/sort.c (MAX_PROCS_BEFORE_REAP): Remove. (reap_exited): Renamed from reap_some; this is a more accurate name, since "some" incorrectly implies that it reaps at least one process. All uses changed. (reap_some): New function: it *does* reap at least one process. (pipe_fork): Do not allow more than NMERGE + 2 subprocesses. (mergefps, sort): Omit check for exited processes: no longer needed, and anyway the code consumed too much CPU per line when 2 < nprocs.
2010-12-16sort: fix hang with sort --compressPaul Eggert
* NEWS: Document this. * src/sort.c (UNCOMPRESSED, UNREAPED, REAPED): New constants. (struct tempnode): New member 'state', to hold these constants. The pid member is now undefined if state == UNCOMPRESSED. (struct sortfile): Replace member 'pid' with member 'temp'. (uintptr): Remove. (proctab_hasher, proctab_comparator, register_proc, delete_proc): Proctab entries are now struct tempnode *, not pid_t, to handle the case where multiple tempnode objects correspond to the same pid. This avoids a race condition that can cause a hang. (register_proc): Arg is now struct tempnode *, not pid_t. All callers changed. (delete_proc): Set tempnode state to REAPED. (create_temp_file): No need to set pid member here; it's now done when the pid is known. (maybe_create_temp, create_temp): Remove PPID arg. Return struct tempnode *, not char *. All callers changed. (maybe_create_temp): Set node state to UNCOMPRESSED or UNREAPED. No need to set node->pid to 0. (open_temp): Replace NAME and PID args with a single TEMP arg. All callers changed. Wait only for unreaped children. (zaptemp): Wait for decompressor to finish before removing its temporary-file input. This avoids .nfsXXXX hassles with NFS and fixes a race (leading to a hang) regardless of NFS. (open_input_files): Adjust to new way of dealing with temp files and their subprocesses. * tests/Makefile.am (TESTS): Add misc/sort-compress-hang. * tests/misc/sort-compress-hang: New file.
2010-12-16sort: don't dump core when merging from input twicePaul Eggert
* NEWS: Document this. * src/sort.c (avoid_trashing_input): The previous fix to this function didn't fix all the problems with this code. Replace it with something simpler: just copy the input file. This doesn't change the number of files, so return void instead of the updated file count. Caller changed. * tests/misc/sort-merge-fdlimit: Test for the bug.
2010-12-14sort: document --compress reaper fixesPaul Eggert
* NEWS: Document the --compress reaper fixes installed yesterday.
2010-12-11sort: avoid segfault when using two or more threadsJim Meyering
This change does not fix the actual bug. That was done by commit c9db0ac6, "sort: preallocate merge tree nodes to heap". The fix was to store each "node" structure on the heap, not on the stack. Otherwise, a node from one thread's stack could be used in another thread after the first thread had expired (via pthread_join). This bug was very hard to trigger when using spinlocks, but easier once we began using mutexes. * NEWS (Bug fixes): Mention it. For details, see http://debbugs.gnu.org/7597.
2010-12-11sort: use mutexes, not spinlocks (avoid busy loop on blocked output)Chen Guo
Running a command like this on a multi-core system sort < big-file | less would peg all processors at near 100% utilization. * src/sort.c: (struct merge_node) Change member lock to mutex. All uses changed. * tests/Makefile.am (XFAIL_TESTS): Remove definition, now that this test passes once again. I.e., the sort-spinlock-abuse test no longer fails. * NEWS (Bug reports): Mention this. Reported by DJ Lucas in http://debbugs.gnu.org/7489.
2010-12-03cp: fix bug with fine-grained src to nearby coarse-grained destPaul Eggert
The actual fix is in gnulib's lib/utimecmp.c. * NEWS: Document fix.
2010-12-01sort -u: fix a thread-race pointer corruption bugPaul Eggert
* src/sort.c (write_unique): Save the entire "struct line", not just a pointer to one. Otherwise, with a multi-thread run, sometimes, with some inputs, fillbuf would would win a race and clobber a "saved->text" pointer in one thread just before it was dereferenced in a comparison in another thread. * NEWS (Bug fixes): Mention it.
2010-11-22split: add --number to generate a particular number of filesChen Guo
* src/split.c (usage, long_options, main): New options --number, --unbuffered, --elide-empty-files. (set_suffix_length): New function to auto increase suffix length to handle a specified number of files. (create): New function. Refactored from cwrite() and ofile_open(). (bytes_split): Add max_files argument to support byte chunking. (lines_chunk_split): New function. Split file into chunks of lines. (bytes_chunk_extract): New function. Extract a chunk of file. (of_info): New struct. Used by functions lines_rr and ofile_open to keep track of file descriptors associated with output files. (ofile_open): New function. Shuffle file descriptors when there are more output files than available file descriptors. (lines_rr): New function to distribute lines round-robin to files. (chunk_parse): New function. Parses K/N syntax. * tests/misc/split-bchunk: New test for byte chunking. * tests/misc/split-lchunk: New test for line delimited chunking. * tests/misc/split-rchunk: New test for round-robin chunking. * tests/Makefile.am: Reference new tests. * tests/misc/split-fail: Add failure scenarios for new options. * tests/misc/split-l: Fix a typo. s/ln/split/. * doc/coreutils.texi (split invocation): Document --number. * NEWS: Mention the new feature. * .mailmap: Map new email address for shortlog. Signed-off-by: Pádraig Brady <P@draigBrady.com>
2010-11-18maint: avoid NEWS-related syntax-check failureJim Meyering
* NEWS: Add 2nd blank line to separate latest changes from those of 8.7, to avoid syntax-check failure.
2010-11-18od: fix bugs in displaying floating-point valuesPaul Eggert
* NEWS: Describe patch. * bootstrap.conf (gnulib_modules): Add ftoastr. * src/od.c: Include ftoastr.h, not float.h. (FLT_DIG, DBL_DIG): Remove. No need to verify LDBL_DIG. (FMT_BYTES_ALLOCATED): No need to worry about floating point now, since this format is no longer used for floating point. (PRINT_FIELDS): New macro, with most of the guts of the old PRINT_TYPE. (PRINT_TYPE): Rewrite to use PRINT_FIELDS. (PRINT_FLOATTYPE): New macro. This uses the new functions from ftoastr. (print_float, print_double, print_long_double): Reimplement using PRINT_FLOATTYPE. (decode_one_format): Calculate field widths based on ftoastr-supplied macros. * tests/Makefile.am (TESTS): Add misc/od-float. * tests/misc/od-float: New file.
2010-11-13doc: tweak NEWS and coreutils.texiPaul Eggert
* doc/coreutils.texi (stat invocation): Add sentence-ending period. * NEWS: Correct stat change description: s/floating point //. * cfg.mk (old_NEWS_hash): Update, to match this NEWS change.
2010-11-13post-release administriviaJim Meyering
* NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update.
2010-11-13version 8.7Jim Meyering
* NEWS: Record release date.
2010-11-13stat: do not provide variable precision time stampsJim Meyering
* src/stat.c: Don't include fstimeprec.c. (out_epoch_sec): Don't call fstimeprec. * NEWS: Update description. * doc/coreutils.texi: Likewise.
2010-11-11csplit: fix a memory leak per input bufferPádraig Brady
* src/csplit.c (free_buffer): Also free the line offsets buffers (remove_line): Also free the containing structure * tests/misc/csplit-heap: A new test to trigger with leaks of this magnitude. * tests/Makefile.am: Reference the new test * NEWS: Mention the fix Reported by David Hofstee
2010-11-10csplit: avoid buffer overrun when writing more than 999 filesJim Meyering
Without this fix, seq 1000 | csplit - /./ '{*}' would write the NUL-terminated file name, xx1000, into a buffer of size 6. * src/csplit.c (main): Use properly sized file name buffer. * NEWS (Bug fixes): Mention it. * tests/misc/csplit-1000: New test to trigger the bug. * tests/Makefile.am (TESTS): Add misc/csplit-1000.
2010-11-06stat: use e.g. %.3X instead of %X.%3:X for sub-second precisionPaul Eggert
* NEWS: Document this. * doc/coreutils.texi (stat invocation): Likewise. * gl/lib/fstimeprec.c, gl/lib/fstimeprec.h, gl/modules/fstimeprec: * gl/modules/fstimeprec-tests, gl/tests/test-fstimeprec.c: New files. * bootstrap.conf (gnulib_modules): Add fstimeprec. * src/stat.c: Include fstimeprec.h. Don't include xstrtol.h. (decimal_point, decimal_point_len): New static vars. (main): Initialize them. (epoch_sec, out_ns): Remove. (out_int, out_uint): Now returns whatever printf returned. (out_minus_zero, out_epoch_secs): New functions. (print_stat): Use out_epoch_sec instead of out_ns and epoch_sec. (print_stat, print_it, usage): Remove the %:X-style formats. * tests/misc/stat-nanoseconds: Set TZ=UTC0 to avoid problems with weird time zones. Use a time stamp near the Epoch so that we don't have to worry about leap seconds. Redo test cases to match new behavior. * tests/touch/60-seconds: Change %Y.%:Y to %.9Y, to adjust to new behavior.
2010-11-04cp: NEWS entry for previous fixEric Blake
Resolves bug#7324 * NEWS: Document the extent of the Solaris crash.
2010-11-03stat: revert %X-%Y-%Z change; use e.g., %:X to print fractional secondsJim Meyering
This reverts part of the recent commit 9069af45, "stat: print timestamps to full resolution", which made %X, %Y, %Z print floating point numbers. We prefer to retain portability of %X, %Y and %Z uses, while still providing access to full-resolution time stamps via modified format strings. Also make the new %W consistent. * src/stat.c: Include "xstrtol.h". (print_it): Accept a new %...:[XYZ] format directive, e.g., %:X, to print the nanoseconds portion of the corresponding time. For example, %3.3:Y prints the zero-padded, truncated, milliseconds part of the time of last modification. (print_it): Update print_func signature to match. (neg_to_zero): New helper function. (epoch_time): Remove function; replace with... (epoch_sec): New function; use timetostr. (out_ns): New function. Use "09" only when no other modifier is specified. (print_statfs): Change type of "m" to unsigned int, now that it must accommodate values larger than 255. (print_stat): Likewise. Map :X to a code of 'X' + 256. Likewise for Y, Z and W. (usage): Update. * tests/touch/60-seconds: Use %Y.%:Y in place of %Y. * tests/misc/stat-nanoseconds: New file. * tests/Makefile.am (TESTS): Add it. * NEWS (Changes in behavior): Mention this. With improvements by Pádraig Brady. Thanks to Andreas Schwab for raising the issue.
2010-10-27cp: make --attributes-only override --reflink completelyPádraig Brady
* doc/coreutils.texi (cp invocation): Change the description slightly so as users might not immediately discount using this option. Mention that --reflink is overridden by the other linking options and --attributes-only, and give an example where this might be useful. * src/copy.c (copy_internal): Bypass the reflink if --attributes-only is specifed. * tests/cp/reflink-perm: Ensure both --reflink modes are overridden by --attributes-only. * NEWS: Mention the change in behavior. Reported by Jim Meyering.