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BranchCommit messageAuthorAge
archive/unc-master-3.0P-FP: fix BUG_ON releated to priority inheritanceBjoern Brandenburg12 years
archived-2013.1uncachedev: mmap memory that is not cached by CPUsGlenn Elliott11 years
archived-private-masterMerge branch 'wip-2.6.34' into old-private-masterAndrea Bastoni15 years
archived-semi-partMerge branch 'wip-semi-part' of ssh://cvs/cvs/proj/litmus/repo/litmus2010 int...Andrea Bastoni14 years
demoFurther refinementsJonathan Herman13 years
ecrts-pgm-finalMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott11 years
ecrts14-pgm-finalMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott11 years
gpusync-rtss12Final GPUSync implementation.Glenn Elliott12 years
gpusync/stagingRename IKGLP R2DGLP.Glenn Elliott11 years
linux-tipMerge branch 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/p...Linus Torvalds14 years
litmus2008-patch-seriesadd i386 feather-trace implementationBjoern B. Brandenburg15 years
masterPSN-EDF: use inferred_sporadic_job_release_atBjoern Brandenburg9 years
pgmmake it compileGlenn Elliott12 years
prop/litmus-signalsInfrastructure for Litmus signals.Glenn Elliott12 years
prop/robust-tie-breakFixed bug in edf_higher_prio().Glenn Elliott12 years
stagingFix tracepoint compilation errorFelipe Cerqueira12 years
test9/23/2016Namhoon Kim8 years
tracing-develTest kernel tracing events capabilitiesAndrea Bastoni15 years
v2.6.34-with-arm-patchessmsc911x: Add spinlocks around registers accessCatalin Marinas15 years
v2015.1Add ARM syscall def for get_current_budgetBjoern Brandenburg9 years
wip-2011.2-bbbLitmus core: simplify np-section protocolBjoern B. Brandenburg13 years
wip-2011.2-bbb-traceRefactor sched_trace_log_message() -> debug_trace_log_message()Andrea Bastoni13 years
wip-2012.3-gpuSOBLIV draining support for C-EDF.Glenn Elliott12 years
wip-2012.3-gpu-preportpick up last C-RM fileGlenn Elliott11 years
wip-2012.3-gpu-rtss13Fix critical bug in GPU tracker.Glenn Elliott11 years
wip-2012.3-gpu-sobliv-budget-w-ksharkProper sobliv draining and many bug fixes.Glenn Elliott12 years
wip-aedzl-finalMake it easier to compile AEDZL interfaces in liblitmus.Glenn Elliott14 years
wip-aedzl-revisedAdd sched_trace data for Apative EDZLGlenn Elliott14 years
wip-arbit-deadlineFix compilation bug.Glenn Elliott13 years
wip-aux-tasksDescription of refined aux task inheritance.Glenn Elliott12 years
wip-bbbGSN-EDF & Core: improve debug TRACE'ing for NP sectionsBjoern B. Brandenburg14 years
wip-bbb-prio-donuse correct timestampBjoern B. Brandenburg13 years
wip-better-breakImplement hash-based EDF tie-breaking.Glenn Elliott12 years
wip-binary-heapMake C-EDF work with simplified binheap_deleteGlenn Elliott13 years
wip-budgetAdded support for choices in budget policy enforcement.Glenn Elliott15 years
wip-colorSummarize schedulability with final recordJonathan Herman13 years
wip-color-jlhsched_color: Fixed two bugs causing crashing on experiment restart and a rare...Jonathan Herman13 years
wip-d10-hz1000Enable HZ=1000 on District 10Bjoern B. Brandenburg14 years
wip-default-clusteringFeature: Make default C-EDF clustering compile-time configurable.Glenn Elliott14 years
wip-dissipation-jericksoUpdate from 2.6.36 to 2.6.36.4Jeremy Erickson11 years
wip-dissipation2-jericksoUpdate 2.6.36 to 2.6.36.4Jeremy Erickson11 years
wip-ecrts14-pgmMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott11 years
wip-edf-hsblast tested versionJonathan Herman13 years
wip-edf-osLookup table EDF-osJeremy Erickson12 years
wip-edf-tie-breakMerge branch 'wip-edf-tie-break' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus...Glenn Elliott12 years
wip-edzl-critiqueUse hr_timer's active checks instead of having own flag.Glenn Elliott14 years
wip-edzl-finalImplementation of the EDZL scheduler.Glenn Elliott14 years
wip-edzl-revisedClean up comments.Glenn Elliott14 years
wip-eventsAdded support for tracing arbitrary actions.Jonathan Herman14 years
wip-extra-debugDBG: add additional tracingBjoern B. Brandenburg14 years
wip-fix-switch-jericksoAttempt to fix race condition with plugin switchingJeremy Erickson14 years
wip-fix3sched: show length of runqueue clock deactivation in /proc/sched_debugBjoern B. Brandenburg14 years
wip-fmlp-dequeueImprove FMLP queue management.Glenn Elliott14 years
wip-ft-irq-flagFeather-Trace: keep track of interrupt-related interference.Bjoern B. Brandenburg13 years
wip-gpu-cleanupEnable sched_trace log injection from userspaceGlenn Elliott12 years
wip-gpu-interruptsRemove option for threading of all softirqs.Glenn Elliott13 years
wip-gpu-rtas12Generalized GPU cost predictors + EWMA. (untested)Glenn Elliott12 years
wip-gpu-rtss12Final GPUSync implementation.Glenn Elliott13 years
wip-gpu-rtss12-srpexperimental changes to support GPUs under SRPGlenn Elliott13 years
wip-gpusync-mergeCleanup priority tracking for budget enforcement.Glenn Elliott11 years
wip-ikglpMove RSM and IKGLP imp. to own .c filesGlenn Elliott13 years
wip-k-fmlpMerge branch 'mpi-master' into wip-k-fmlpGlenn Elliott13 years
wip-kernel-coloringAdded recolor syscallNamhoon Kim7 years
wip-kernthreadsKludge work-queue processing into klitirqd.Glenn Elliott14 years
wip-klmirqd-to-auxAllow klmirqd threads to be given names.Glenn Elliott12 years
wip-ksharkMerge branch 'mpi-staging' into wip-ksharkJonathan Herman12 years
wip-litmus-3.2Merge commit 'v3.2' into litmus-stagingAndrea Bastoni12 years
wip-litmus2011.2Cleanup: Coding conformance for affinity stuff.Glenn Elliott14 years
wip-litmus3.0-2011.2Feather-Trace: keep track of interrupt-related interference.Bjoern B. Brandenburg13 years
wip-master-2.6.33-rtAvoid deadlock when switching task policy to BACKGROUND (ugly)Andrea Bastoni15 years
wip-mcRemoved ARM-specific hacks which disabled less common mixed-criticality featu...Jonathan Herman12 years
wip-mc-bipasaMC-EDF addedbipasa chattopadhyay13 years
wip-mc-jericksoSplit C/D queuesJeremy Erickson14 years
wip-mc2-cache-slackManually patched mc^2 related codeMing Yang9 years
wip-mcrit-maccosmeticMac Mollison14 years
wip-merge-3.0Prevent Linux to send IPI and queue tasks on remote CPUs.Andrea Bastoni13 years
wip-merge-v3.0Prevent Linux to send IPI and queue tasks on remote CPUs.Andrea Bastoni13 years
wip-migration-affinityNULL affinity dereference in C-EDF.Glenn Elliott14 years
wip-mmap-uncacheshare branch with othersGlenn Elliott12 years
wip-modechangeRTSS 2017 submissionNamhoon Kim8 years
wip-nested-lockingAppears to be working.Bryan Ward12 years
wip-omlp-gedfFirst implementation of G-OMLP.Glenn Elliott14 years
wip-paiSome cleanup of PAIGlenn Elliott13 years
wip-percore-lib9/21/2016Namhoon Kim8 years
wip-performanceCONFIG_DONT_PREEMPT_ON_TIE: Don't preeempt a scheduled task on priority tie.Glenn Elliott14 years
wip-pgmAdd PGM support to C-FLGlenn Elliott11 years
wip-pgm-splitFirst draft of C-FL-splitNamhoon Kim11 years
wip-pm-ovdAdd preemption-and-migration overhead tracing supportAndrea Bastoni15 years
wip-prio-inhP-EDF updated to use the generic pi framework.Glenn Elliott14 years
wip-prioq-dglBUG FIX: Support DGLs with PRIOQ_MUTEXGlenn Elliott12 years
wip-refactored-gedfGeneralizd architecture for GEDF-style scheduelrs to reduce code redundancy.Glenn Elliott14 years
wip-release-master-fixbugfix: release master CPU must signal task was pickedBjoern B. Brandenburg14 years
wip-robust-tie-breakEDF priority tie-breaks.Glenn Elliott12 years
wip-rt-ksharkMove task time accounting into the complete_job method.Jonathan Herman12 years
wip-rtas12-pgmScheduling of PGM jobs.Glenn Elliott13 years
wip-semi-partFix compile error with newer GCCJeremy Erickson12 years
wip-semi-part-edfos-jericksoUse initial CPU set by clientJeremy Erickson12 years
wip-shared-libTODO: Fix condition checks in replicate_page_move_mapping()Namhoon Kim8 years
wip-shared-lib2RTAS 2017 Submission ver.Namhoon Kim8 years
wip-shared-memInitial commit for shared libraryNamhoon Kim8 years
wip-splitting-jericksoFix release behaviorJeremy Erickson12 years
wip-splitting-omlp-jericksoBjoern's Dissertation Code with Priority DonationJeremy Erickson12 years
wip-stage-binheapAn efficient binary heap implementation.Glenn Elliott13 years
wip-sun-portDynamic memory allocation and clean exit for FeatherTraceChristopher Kenna14 years
wip-timer-tracebugfix: C-EDF, clear scheduled field of the correct CPU upon task_exitAndrea Bastoni14 years
wip-tracepointsAdd kernel-style events for sched_trace_XXX() functionsAndrea Bastoni13 years
 
TagDownloadAuthorAge
2015.1commit 8e51b37822...Bjoern Brandenburg9 years
2013.1commit bcaacec1ca...Glenn Elliott11 years
2012.3commit c158b5fbe4...Jonathan Herman12 years
2012.2commit b53c479a0f...Glenn Elliott12 years
2012.1commit 83b11ea1c6...Bjoern B. Brandenburg13 years
rtas12-mc-beta-expcommit 8e236ee20f...Christopher Kenna13 years
2011.1commit d11808b5c6...Christopher Kenna14 years
v2.6.37-rc4commit e8a7e48bb2...Linus Torvalds14 years
v2.6.37-rc3commit 3561d43fd2...Linus Torvalds14 years
v2.6.37-rc2commit e53beacd23...Linus Torvalds14 years
v2.6.37-rc1commit c8ddb2713c...Linus Torvalds14 years
v2.6.36commit f6f94e2ab1...Linus Torvalds14 years
2010.2commit 5c5456402d...Bjoern B. Brandenburg14 years
v2.6.36-rc8commit cd07202cc8...Linus Torvalds14 years
v2.6.36-rc7commit cb655d0f3d...Linus Torvalds14 years
v2.6.36-rc6commit 899611ee7d...Linus Torvalds14 years
v2.6.36-rc5commit b30a3f6257...Linus Torvalds14 years
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v2.6.36-rc3commit 2bfc96a127...Linus Torvalds14 years
v2.6.36-rc2commit 76be97c1fc...Linus Torvalds14 years
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v2.6.35commit 9fe6206f40...Linus Torvalds14 years
v2.6.35-rc6commit b37fa16e78...Linus Torvalds15 years
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v2.6.35-rc2commit e44a21b726...Linus Torvalds15 years
v2.6.35-rc1commit 67a3e12b05...Linus Torvalds15 years
2010.1commit 7c1ff4c544...Andrea Bastoni15 years
v2.6.34commit e40152ee1e...Linus Torvalds15 years
v2.6.33.4commit 4640b4e7d9...Greg Kroah-Hartman15 years
v2.6.34-rc7commit b57f95a382...Linus Torvalds15 years
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v2.6.33.3commit 3e7ad8ed97...Greg Kroah-Hartman15 years
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v2.6.15-rc3commit 624f54be20...Linus Torvalds19 years
v2.6.15-rc2commit 3bedff1d73...Linus Torvalds19 years
v2.6.15-rc1commit cd52d1ee9a...Linus Torvalds19 years
v2.6.14commit 741b2252a5...Linus Torvalds19 years
v2.6.14-rc5commit 93918e9afc...Linus Torvalds19 years
v2.6.14-rc4commit 907a426179...Linus Torvalds19 years
v2.6.14-rc3commit 1c9426e8a5...Linus Torvalds19 years
v2.6.14-rc2commit 676d55ae30...Linus Torvalds19 years
v2.6.14-rc1commit 2f4ba45a75...Linus Torvalds19 years
v2.6.13commit 02b3e4e2d7...Linus Torvalds19 years
v2.6.13-rc7commit 0572e3da3f...Linus Torvalds19 years
v2.6.13-rc6commit 6fc32179de...Linus Torvalds19 years
v2.6.13-rc5commit 9a351e30d7...Linus Torvalds19 years
v2.6.13-rc4commit 6395352334...Linus Torvalds20 years
v2.6.11tree c39ae07f39...
v2.6.11-treetree c39ae07f39...
v2.6.12commit 9ee1c939d1...
v2.6.12-rc2commit 1da177e4c3...
v2.6.12-rc3commit a2755a80f4...
v2.6.12-rc4commit 88d7bd8cb9...
v2.6.12-rc5commit 2a24ab628a...
v2.6.12-rc6commit 7cef5677ef...
v2.6.13-rc1commit 4c91aedb75...
v2.6.13-rc2commit a18bcb7450...
v2.6.13-rc3commit c32511e271...
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-24 14:53:44 -0500
lass="hl opt">= cpu_to_le32(info->dqi_free_entry); dh->dqdh_prev_free = cpu_to_le32(0); err = write_blk(info, blk, buf); if (err < 0) goto out_buf; if (info->dqi_free_entry) { err = read_blk(info, info->dqi_free_entry, tmpbuf); if (err < 0) goto out_buf; ((struct qt_disk_dqdbheader *)tmpbuf)->dqdh_prev_free = cpu_to_le32(blk); err = write_blk(info, info->dqi_free_entry, tmpbuf); if (err < 0) goto out_buf; } kfree(tmpbuf); info->dqi_free_entry = blk; mark_info_dirty(info->dqi_sb, info->dqi_type); return 0; out_buf: kfree(tmpbuf); return err; } /* Is the entry in the block free? */ int qtree_entry_unused(struct qtree_mem_dqinfo *info, char *disk) { int i; for (i = 0; i < info->dqi_entry_size; i++) if (disk[i]) return 0; return 1; } EXPORT_SYMBOL(qtree_entry_unused); /* Find space for dquot */ static uint find_free_dqentry(struct qtree_mem_dqinfo *info, struct dquot *dquot, int *err) { uint blk, i; struct qt_disk_dqdbheader *dh; char *buf = getdqbuf(info->dqi_usable_bs); char *ddquot; *err = 0; if (!buf) { *err = -ENOMEM; return 0; } dh = (struct qt_disk_dqdbheader *)buf; if (info->dqi_free_entry) { blk = info->dqi_free_entry; *err = read_blk(info, blk, buf); if (*err < 0) goto out_buf; } else { blk = get_free_dqblk(info); if ((int)blk < 0) { *err = blk; kfree(buf); return 0; } memset(buf, 0, info->dqi_usable_bs); /* This is enough as the block is already zeroed and the entry * list is empty... */ info->dqi_free_entry = blk; mark_info_dirty(dquot->dq_sb, dquot->dq_type); } /* Block will be full? */ if (le16_to_cpu(dh->dqdh_entries) + 1 >= qtree_dqstr_in_blk(info)) { *err = remove_free_dqentry(info, buf, blk); if (*err < 0) { quota_error(dquot->dq_sb, "Can't remove block (%u) " "from entry free list", blk); goto out_buf; } } le16_add_cpu(&dh->dqdh_entries, 1); /* Find free structure in block */ ddquot = buf + sizeof(struct qt_disk_dqdbheader); for (i = 0; i < qtree_dqstr_in_blk(info); i++) { if (qtree_entry_unused(info, ddquot)) break; ddquot += info->dqi_entry_size; } #ifdef __QUOTA_QT_PARANOIA if (i == qtree_dqstr_in_blk(info)) { quota_error(dquot->dq_sb, "Data block full but it shouldn't"); *err = -EIO; goto out_buf; } #endif *err = write_blk(info, blk, buf); if (*err < 0) { quota_error(dquot->dq_sb, "Can't write quota data block %u", blk); goto out_buf; } dquot->dq_off = (blk << info->dqi_blocksize_bits) + sizeof(struct qt_disk_dqdbheader) + i * info->dqi_entry_size; kfree(buf); return blk; out_buf: kfree(buf); return 0; } /* Insert reference to structure into the trie */ static int do_insert_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot, uint *treeblk, int depth) { char *buf = getdqbuf(info->dqi_usable_bs); int ret = 0, newson = 0, newact = 0; __le32 *ref; uint newblk; if (!buf) return -ENOMEM; if (!*treeblk) { ret = get_free_dqblk(info); if (ret < 0) goto out_buf; *treeblk = ret; memset(buf, 0, info->dqi_usable_bs); newact = 1; } else { ret = read_blk(info, *treeblk, buf); if (ret < 0) { quota_error(dquot->dq_sb, "Can't read tree quota " "block %u", *treeblk); goto out_buf; } } ref = (__le32 *)buf; newblk = le32_to_cpu(ref[get_index(info, dquot->dq_id, depth)]); if (!newblk) newson = 1; if (depth == info->dqi_qtree_depth - 1) { #ifdef __QUOTA_QT_PARANOIA if (newblk) { quota_error(dquot->dq_sb, "Inserting already present " "quota entry (block %u)", le32_to_cpu(ref[get_index(info, dquot->dq_id, depth)])); ret = -EIO; goto out_buf; } #endif newblk = find_free_dqentry(info, dquot, &ret); } else { ret = do_insert_tree(info, dquot, &newblk, depth+1); } if (newson && ret >= 0) { ref[get_index(info, dquot->dq_id, depth)] = cpu_to_le32(newblk); ret = write_blk(info, *treeblk, buf); } else if (newact && ret < 0) { put_free_dqblk(info, buf, *treeblk); } out_buf: kfree(buf); return ret; } /* Wrapper for inserting quota structure into tree */ static inline int dq_insert_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot) { int tmp = QT_TREEOFF; return do_insert_tree(info, dquot, &tmp, 0); } /* * We don't have to be afraid of deadlocks as we never have quotas on quota * files... */ int qtree_write_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot) { int type = dquot->dq_type; struct super_block *sb = dquot->dq_sb; ssize_t ret; char *ddquot = getdqbuf(info->dqi_entry_size); if (!ddquot) return -ENOMEM; /* dq_off is guarded by dqio_mutex */ if (!dquot->dq_off) { ret = dq_insert_tree(info, dquot); if (ret < 0) { quota_error(sb, "Error %zd occurred while creating " "quota", ret); kfree(ddquot); return ret; } } spin_lock(&dq_data_lock); info->dqi_ops->mem2disk_dqblk(ddquot, dquot); spin_unlock(&dq_data_lock); ret = sb->s_op->quota_write(sb, type, ddquot, info->dqi_entry_size, dquot->dq_off); if (ret != info->dqi_entry_size) { quota_error(sb, "dquota write failed"); if (ret >= 0) ret = -ENOSPC; } else { ret = 0; } dqstats_inc(DQST_WRITES); kfree(ddquot); return ret; } EXPORT_SYMBOL(qtree_write_dquot); /* Free dquot entry in data block */ static int free_dqentry(struct qtree_mem_dqinfo *info, struct dquot *dquot, uint blk) { struct qt_disk_dqdbheader *dh; char *buf = getdqbuf(info->dqi_usable_bs); int ret = 0; if (!buf) return -ENOMEM; if (dquot->dq_off >> info->dqi_blocksize_bits != blk) { quota_error(dquot->dq_sb, "Quota structure has offset to " "other block (%u) than it should (%u)", blk, (uint)(dquot->dq_off >> info->dqi_blocksize_bits)); goto out_buf; } ret = read_blk(info, blk, buf); if (ret < 0) { quota_error(dquot->dq_sb, "Can't read quota data block %u", blk); goto out_buf; } dh = (struct qt_disk_dqdbheader *)buf; le16_add_cpu(&dh->dqdh_entries, -1); if (!le16_to_cpu(dh->dqdh_entries)) { /* Block got free? */ ret = remove_free_dqentry(info, buf, blk); if (ret >= 0) ret = put_free_dqblk(info, buf, blk); if (ret < 0) { quota_error(dquot->dq_sb, "Can't move quota data block " "(%u) to free list", blk); goto out_buf; } } else { memset(buf + (dquot->dq_off & ((1 << info->dqi_blocksize_bits) - 1)), 0, info->dqi_entry_size); if (le16_to_cpu(dh->dqdh_entries) == qtree_dqstr_in_blk(info) - 1) { /* Insert will write block itself */ ret = insert_free_dqentry(info, buf, blk); if (ret < 0) { quota_error(dquot->dq_sb, "Can't insert quota " "data block (%u) to free entry list", blk); goto out_buf; } } else { ret = write_blk(info, blk, buf); if (ret < 0) { quota_error(dquot->dq_sb, "Can't write quota " "data block %u", blk); goto out_buf; } } } dquot->dq_off = 0; /* Quota is now unattached */ out_buf: kfree(buf); return ret; } /* Remove reference to dquot from tree */ static int remove_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot, uint *blk, int depth) { char *buf = getdqbuf(info->dqi_usable_bs); int ret = 0; uint newblk; __le32 *ref = (__le32 *)buf; if (!buf) return -ENOMEM; ret = read_blk(info, *blk, buf); if (ret < 0) { quota_error(dquot->dq_sb, "Can't read quota data block %u", *blk); goto out_buf; } newblk = le32_to_cpu(ref[get_index(info, dquot->dq_id, depth)]); if (depth == info->dqi_qtree_depth - 1) { ret = free_dqentry(info, dquot, newblk); newblk = 0; } else { ret = remove_tree(info, dquot, &newblk, depth+1); } if (ret >= 0 && !newblk) { int i; ref[get_index(info, dquot->dq_id, depth)] = cpu_to_le32(0); /* Block got empty? */ for (i = 0; i < (info->dqi_usable_bs >> 2) && !ref[i]; i++) ; /* Don't put the root block into the free block list */ if (i == (info->dqi_usable_bs >> 2) && *blk != QT_TREEOFF) { put_free_dqblk(info, buf, *blk); *blk = 0; } else { ret = write_blk(info, *blk, buf); if (ret < 0) quota_error(dquot->dq_sb, "Can't write quota tree block %u", *blk); } } out_buf: kfree(buf); return ret; } /* Delete dquot from tree */ int qtree_delete_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot) { uint tmp = QT_TREEOFF; if (!dquot->dq_off) /* Even not allocated? */ return 0; return remove_tree(info, dquot, &tmp, 0); } EXPORT_SYMBOL(qtree_delete_dquot); /* Find entry in block */ static loff_t find_block_dqentry(struct qtree_mem_dqinfo *info, struct dquot *dquot, uint blk) { char *buf = getdqbuf(info->dqi_usable_bs); loff_t ret = 0; int i; char *ddquot; if (!buf) return -ENOMEM; ret = read_blk(info, blk, buf); if (ret < 0) { quota_error(dquot->dq_sb, "Can't read quota tree " "block %u", blk); goto out_buf; } ddquot = buf + sizeof(struct qt_disk_dqdbheader); for (i = 0; i < qtree_dqstr_in_blk(info); i++) { if (info->dqi_ops->is_id(ddquot, dquot)) break; ddquot += info->dqi_entry_size; } if (i == qtree_dqstr_in_blk(info)) { quota_error(dquot->dq_sb, "Quota for id %u referenced " "but not present", dquot->dq_id); ret = -EIO; goto out_buf; } else { ret = (blk << info->dqi_blocksize_bits) + sizeof(struct qt_disk_dqdbheader) + i * info->dqi_entry_size; } out_buf: kfree(buf); return ret; } /* Find entry for given id in the tree */ static loff_t find_tree_dqentry(struct qtree_mem_dqinfo *info, struct dquot *dquot, uint blk, int depth) { char *buf = getdqbuf(info->dqi_usable_bs); loff_t ret = 0; __le32 *ref = (__le32 *)buf; if (!buf) return -ENOMEM; ret = read_blk(info, blk, buf); if (ret < 0) { quota_error(dquot->dq_sb, "Can't read quota tree block %u", blk); goto out_buf; } ret = 0; blk = le32_to_cpu(ref[get_index(info, dquot->dq_id, depth)]); if (!blk) /* No reference? */ goto out_buf; if (depth < info->dqi_qtree_depth - 1) ret = find_tree_dqentry(info, dquot, blk, depth+1); else ret = find_block_dqentry(info, dquot, blk); out_buf: kfree(buf); return ret; } /* Find entry for given id in the tree - wrapper function */ static inline loff_t find_dqentry(struct qtree_mem_dqinfo *info, struct dquot *dquot) { return find_tree_dqentry(info, dquot, QT_TREEOFF, 0); } int qtree_read_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot) { int type = dquot->dq_type; struct super_block *sb = dquot->dq_sb; loff_t offset; char *ddquot; int ret = 0; #ifdef __QUOTA_QT_PARANOIA /* Invalidated quota? */ if (!sb_dqopt(dquot->dq_sb)->files[type]) { quota_error(sb, "Quota invalidated while reading!"); return -EIO; } #endif /* Do we know offset of the dquot entry in the quota file? */ if (!dquot->dq_off) { offset = find_dqentry(info, dquot); if (offset <= 0) { /* Entry not present? */ if (offset < 0) quota_error(sb, "Can't read quota structure " "for id %u", dquot->dq_id); dquot->dq_off = 0; set_bit(DQ_FAKE_B, &dquot->dq_flags); memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk)); ret = offset; goto out; } dquot->dq_off = offset; } ddquot = getdqbuf(info->dqi_entry_size); if (!ddquot) return -ENOMEM; ret = sb->s_op->quota_read(sb, type, ddquot, info->dqi_entry_size, dquot->dq_off); if (ret != info->dqi_entry_size) { if (ret >= 0) ret = -EIO; quota_error(sb, "Error while reading quota structure for id %u", dquot->dq_id); set_bit(DQ_FAKE_B, &dquot->dq_flags); memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk)); kfree(ddquot); goto out; } spin_lock(&dq_data_lock); info->dqi_ops->disk2mem_dqblk(dquot, ddquot); if (!dquot->dq_dqb.dqb_bhardlimit && !dquot->dq_dqb.dqb_bsoftlimit && !dquot->dq_dqb.dqb_ihardlimit && !dquot->dq_dqb.dqb_isoftlimit) set_bit(DQ_FAKE_B, &dquot->dq_flags); spin_unlock(&dq_data_lock); kfree(ddquot); out: dqstats_inc(DQST_READS); return ret; } EXPORT_SYMBOL(qtree_read_dquot); /* Check whether dquot should not be deleted. We know we are * the only one operating on dquot (thanks to dq_lock) */ int qtree_release_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot) { if (test_bit(DQ_FAKE_B, &dquot->dq_flags) && !(dquot->dq_dqb.dqb_curinodes | dquot->dq_dqb.dqb_curspace)) return qtree_delete_dquot(info, dquot); return 0; } EXPORT_SYMBOL(qtree_release_dquot);
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-24 14:53:44 -0500