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Search include mm/vmscan.c file commit history.

$ git log --oneline --shortstat --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cs) %C(bold blue)<%an>%Creset' --abbrev-commit --before="2019-05-20" --after="2008-10-01"  --full-diff mm/vmscan.c

Search commit history that include mm/vmscan.c and changed 100 lines above.

$ git log --oneline --shortstat --pretty=format:'@ %Cred%h%Creset %Cgreen(%cs) %C(yellow)%d%Creset %s %C(bold blue)<%an>%Creset' --abbrev-commit --before="2019-05-20" --after="2008-10-01" --full-diff mm/vmscan.c | awk '$4 > 100 {print ;}' | tr "\n" " "  | tr "@" "\n" | grep insertions

Search vmscan.c::shrink_page_list() function releated commit history and print to text file.

$ git log --oneline --shortstat --pretty=format:'@ %Cred%h%Creset %Cgreen(%cs) %C(yellow)%d%Creset %s %C(bold blue)<%an>%Creset' --abbrev-commit --before="2019-05-20" --after="2008-10-01" -G shrink_page_list mm/vmscan.c > ~/commit.txt